| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 17037 | 231 | 3902 |
| 1997 | 16238 | 305 | 3804 |
| 1998 | 14828 | 477 | 3660 |
| 1999 | 15310 | 454 | 3993 |
| 2000 | 15665 | 458 | 4028 |
| 2001 | 16431 | 400 | 4239 |
| 2002 | 16543 | 537 | 4282 |
| 2003 | 17311 | 733 | 4504 |
| 2004 | 17571 | 904 | 4546 |
| 2005 | 18344 | 1085 | 4738 |
| 2006 | 19210 | 1684 | 5228 |
| 2007 | 19786 | 1808 | 5477 |
| 2008 | 20212 | 2675 | 5519 |
| 2009 | 21532 | 2705 | 5764 |
| 2010 | 22477 | 3404 | 5913 |
| 2011 | 24614 | 4184 | 6293 |
| 2012 | 24009 | 4724 | 6399 |
| 2013 | 24846 | 5675 | 7032 |
| 2014 | 26653 | 6069 | 7273 |
| 2015 | 26939 | 7065 | 7662 |
| 2016 | 27158 | 8549 | 7742 |
| 2017 | 27521 | 8780 | 7981 |
| 2018 | 28629 | 10618 | 8346 |
| 2019 | 28863 | 11501 | 8270 |
| 2020 | 30080 | 14650 | 8872 |
| 2021 | 32608 | 17806 | 10015 |
| 2022 | 29874 | 22429 | 9022 |
| 2023 | 28188 | 19995 | 8437 |
| 2024 | 27132 | 21117 | 8591 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 16781 | 229 | 3771 |
| 1997 | 16021 | 304 | 3629 |
| 1998 | 14530 | 477 | 3475 |
| 1999 | 14769 | 453 | 3674 |
| 2000 | 15156 | 454 | 3763 |
| 2001 | 15820 | 399 | 3878 |
| 2002 | 15854 | 533 | 3971 |
| 2003 | 16691 | 729 | 4164 |
| 2004 | 16874 | 899 | 4187 |
| 2005 | 17401 | 1072 | 4323 |
| 2006 | 18200 | 1674 | 4717 |
| 2007 | 18500 | 1785 | 4890 |
| 2008 | 18919 | 2645 | 5013 |
| 2009 | 19950 | 2659 | 5241 |
| 2010 | 20811 | 3331 | 5310 |
| 2011 | 22795 | 4094 | 5670 |
| 2012 | 22312 | 4595 | 5758 |
| 2013 | 23109 | 5509 | 6390 |
| 2014 | 24617 | 5893 | 6642 |
| 2015 | 24969 | 6888 | 7005 |
| 2016 | 24952 | 8344 | 6975 |
| 2017 | 25289 | 8571 | 7200 |
| 2018 | 26233 | 10384 | 7493 |
| 2019 | 26587 | 11266 | 7540 |
| 2020 | 27356 | 14265 | 7908 |
| 2021 | 30171 | 17477 | 9111 |
| 2022 | 26908 | 22049 | 8059 |
| 2023 | 25373 | 19451 | 7596 |
| 2024 | 24752 | 20684 | 7740 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 256 | 2 | 131 |
| 1997 | 217 | 1 | 175 |
| 1998 | 298 | 0 | 185 |
| 1999 | 541 | 1 | 319 |
| 2000 | 509 | 4 | 265 |
| 2001 | 611 | 1 | 361 |
| 2002 | 689 | 4 | 311 |
| 2003 | 620 | 4 | 340 |
| 2004 | 697 | 5 | 359 |
| 2005 | 943 | 13 | 415 |
| 2006 | 1010 | 10 | 511 |
| 2007 | 1286 | 23 | 587 |
| 2008 | 1293 | 30 | 506 |
| 2009 | 1582 | 46 | 523 |
| 2010 | 1666 | 73 | 603 |
| 2011 | 1819 | 90 | 623 |
| 2012 | 1697 | 129 | 641 |
| 2013 | 1737 | 166 | 642 |
| 2014 | 2036 | 176 | 631 |
| 2015 | 1970 | 177 | 657 |
| 2016 | 2206 | 205 | 767 |
| 2017 | 2232 | 209 | 781 |
| 2018 | 2396 | 234 | 853 |
| 2019 | 2276 | 235 | 730 |
| 2020 | 2724 | 385 | 964 |
| 2021 | 2437 | 329 | 904 |
| 2022 | 2966 | 380 | 963 |
| 2023 | 2815 | 544 | 841 |
| 2024 | 2380 | 433 | 851 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 14760 | 183 | 3547 |
| 1997 | 14499 | 218 | 3454 |
| 1998 | 14156 | 343 | 3440 |
| 1999 | 14659 | 329 | 3746 |
| 2000 | 14979 | 372 | 3736 |
| 2001 | 15352 | 335 | 3937 |
| 2002 | 15609 | 471 | 4039 |
| 2003 | 16369 | 628 | 4297 |
| 2004 | 17019 | 808 | 4396 |
| 2005 | 17738 | 954 | 4557 |
| 2006 | 18566 | 1382 | 5026 |
| 2007 | 18977 | 1555 | 5238 |
| 2008 | 19553 | 2270 | 5297 |
| 2009 | 20731 | 2386 | 5563 |
| 2010 | 21672 | 3015 | 5692 |
| 2011 | 23495 | 3698 | 6029 |
| 2012 | 23173 | 4280 | 6121 |
| 2013 | 23947 | 5257 | 6750 |
| 2014 | 25575 | 5762 | 7006 |
| 2015 | 25833 | 6792 | 7374 |
| 2016 | 26001 | 8164 | 7438 |
| 2017 | 26354 | 8434 | 7610 |
| 2018 | 27371 | 10136 | 7956 |
| 2019 | 27508 | 11038 | 7901 |
| 2020 | 28506 | 13748 | 8415 |
| 2021 | 30377 | 16439 | 9353 |
| 2022 | 26436 | 19882 | 8085 |
| 2023 | 22215 | 15719 | 6888 |
| 2024 | 10608 | 7550 | 3682 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 2277 | 48 | 355 |
| 1997 | 1739 | 87 | 350 |
| 1998 | 672 | 134 | 220 |
| 1999 | 651 | 125 | 247 |
| 2000 | 686 | 86 | 292 |
| 2001 | 1079 | 65 | 302 |
| 2002 | 934 | 66 | 243 |
| 2003 | 942 | 105 | 207 |
| 2004 | 552 | 96 | 150 |
| 2005 | 606 | 131 | 181 |
| 2006 | 644 | 302 | 202 |
| 2007 | 809 | 253 | 239 |
| 2008 | 659 | 405 | 222 |
| 2009 | 801 | 319 | 201 |
| 2010 | 805 | 389 | 221 |
| 2011 | 1119 | 486 | 264 |
| 2012 | 836 | 444 | 278 |
| 2013 | 899 | 418 | 282 |
| 2014 | 1078 | 307 | 267 |
| 2015 | 1106 | 273 | 288 |
| 2016 | 1157 | 385 | 304 |
| 2017 | 1167 | 346 | 371 |
| 2018 | 1258 | 482 | 390 |
| 2019 | 1355 | 463 | 369 |
| 2020 | 1574 | 902 | 457 |
| 2021 | 2231 | 1367 | 662 |
| 2022 | 3438 | 2547 | 937 |
| 2023 | 5973 | 4276 | 1549 |
| 2024 | 16524 | 13567 | 4909 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 957935 | 6703 | 207806 |
| 1997 | 1072959 | 6894 | 233415 |
| 1998 | 1121761 | 9127 | 249829 |
| 1999 | 1220639 | 11676 | 279843 |
| 2000 | 1340605 | 12993 | 320020 |
| 2001 | 1316882 | 12381 | 331135 |
| 2002 | 1352720 | 24409 | 346741 |
| 2003 | 1409894 | 26816 | 369076 |
| 2004 | 1508908 | 37841 | 381826 |
| 2005 | 1493133 | 46241 | 400623 |
| 2006 | 1500796 | 58931 | 398482 |
| 2007 | 1510078 | 69330 | 391796 |
| 2008 | 1478221 | 92218 | 406639 |
| 2009 | 1488684 | 97221 | 400445 |
| 2010 | 1480804 | 122531 | 411609 |
| 2011 | 1504510 | 133972 | 406963 |
| 2012 | 1359676 | 148898 | 384237 |
| 2013 | 1327057 | 183166 | 413184 |
| 2014 | 1281813 | 207546 | 398009 |
| 2015 | 1222344 | 243305 | 357947 |
| 2016 | 1097995 | 261532 | 360650 |
| 2017 | 1046595 | 275749 | 345096 |
| 2018 | 946333 | 310714 | 314079 |
| 2019 | 787316 | 292675 | 269522 |
| 2020 | 683429 | 336407 | 246801 |
| 2021 | 496513 | 254533 | 190684 |
| 2022 | 273809 | 187027 | 102810 |
| 2023 | 123986 | 87422 | 47620 |
| 2024 | 26270 | 19267 | 10277 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 479318 | 5576 | 163583 |
| 1997 | 535811 | 5580 | 184618 |
| 1998 | 565216 | 6826 | 197956 |
| 1999 | 613243 | 8877 | 223644 |
| 2000 | 702233 | 9715 | 256679 |
| 2001 | 685217 | 9069 | 266703 |
| 2002 | 706807 | 18706 | 279523 |
| 2003 | 744932 | 18830 | 296317 |
| 2004 | 800080 | 25096 | 308925 |
| 2005 | 796802 | 31498 | 324417 |
| 2006 | 804204 | 38017 | 319868 |
| 2007 | 813565 | 45256 | 313422 |
| 2008 | 801704 | 58646 | 327025 |
| 2009 | 803519 | 62869 | 320524 |
| 2010 | 804743 | 75864 | 328857 |
| 2011 | 818892 | 82218 | 325458 |
| 2012 | 739564 | 89029 | 306980 |
| 2013 | 724359 | 107010 | 330499 |
| 2014 | 704099 | 116572 | 318378 |
| 2015 | 679958 | 132297 | 283400 |
| 2016 | 616090 | 134291 | 286230 |
| 2017 | 599932 | 140817 | 278299 |
| 2018 | 546470 | 151199 | 250807 |
| 2019 | 459789 | 138936 | 216569 |
| 2020 | 406823 | 165588 | 198453 |
| 2021 | 288902 | 107120 | 152326 |
| 2022 | 157774 | 75740 | 81564 |
| 2023 | 70028 | 34496 | 36939 |
| 2024 | 14318 | 7680 | 7861 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 478617 | 1127 | 44223 |
| 1997 | 537148 | 1314 | 48797 |
| 1998 | 556545 | 2301 | 51873 |
| 1999 | 607396 | 2799 | 56199 |
| 2000 | 638372 | 3278 | 63341 |
| 2001 | 631665 | 3312 | 64432 |
| 2002 | 645913 | 5703 | 67218 |
| 2003 | 664962 | 7986 | 72759 |
| 2004 | 708828 | 12745 | 72901 |
| 2005 | 696331 | 14743 | 76206 |
| 2006 | 696592 | 20914 | 78614 |
| 2007 | 696513 | 24074 | 78374 |
| 2008 | 676517 | 33572 | 79614 |
| 2009 | 685165 | 34352 | 79921 |
| 2010 | 676061 | 46667 | 82752 |
| 2011 | 685618 | 51754 | 81505 |
| 2012 | 620112 | 59869 | 77257 |
| 2013 | 602698 | 76156 | 82685 |
| 2014 | 577714 | 90974 | 79631 |
| 2015 | 542386 | 111008 | 74547 |
| 2016 | 481905 | 127241 | 74420 |
| 2017 | 446663 | 134932 | 66797 |
| 2018 | 399863 | 159515 | 63272 |
| 2019 | 327527 | 153739 | 52953 |
| 2020 | 276606 | 170819 | 48348 |
| 2021 | 207611 | 147413 | 38358 |
| 2022 | 116035 | 111287 | 21246 |
| 2023 | 53958 | 52926 | 10681 |
| 2024 | 11952 | 11587 | 2416 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 21.54 | 48.92 | 31.34 |
| 1997 | 18.73 | 36.72 | 28.89 |
| 1998 | 22.34 | 26.21 | 34.10 |
| 1999 | 21.42 | 31.72 | 32.13 |
| 2000 | 21.40 | 34.93 | 31.95 |
| 2001 | 19.98 | 31.50 | 32.37 |
| 2002 | 21.74 | 38.18 | 34.91 |
| 2003 | 25.50 | 39.15 | 40.96 |
| 2004 | 26.94 | 41.81 | 41.73 |
| 2005 | 27.50 | 40.28 | 44.36 |
| 2006 | 27.24 | 34.03 | 43.90 |
| 2007 | 28.12 | 35.34 | 44.53 |
| 2008 | 30.05 | 32.79 | 48.83 |
| 2009 | 29.82 | 34.75 | 49.81 |
| 2010 | 29.79 | 33.52 | 52.07 |
| 2011 | 29.09 | 30.78 | 52.18 |
| 2012 | 30.91 | 30.50 | 53.24 |
| 2013 | 32.36 | 30.84 | 55.25 |
| 2014 | 32.80 | 33.65 | 58.42 |
| 2015 | 35.10 | 35.24 | 60.47 |
| 2016 | 36.33 | 31.44 | 62.75 |
| 2017 | 37.01 | 33.15 | 62.91 |
| 2018 | 38.54 | 31.65 | 64.58 |
| 2019 | 38.76 | 30.89 | 66.64 |
| 2020 | 39.12 | 27.48 | 67.35 |
| 2021 | 40.21 | 25.03 | 68.39 |
| 2022 | 39.98 | 19.94 | 69.52 |
| 2023 | 40.82 | 20.98 | 71.62 |
| 2024 | 41.71 | 19.50 | 71.45 |
| Year | United States | China | United Kingdom |
|---|---|---|---|
| 1996 | 19.89 | 12.12 | 21.19 |
| 1997 | 25.89 | 12.79 | 28.18 |
| 1998 | 27.69 | 19.08 | 30.98 |
| 1999 | 27.07 | 17.18 | 31.53 |
| 2000 | 24.35 | 14.85 | 32.40 |
| 2001 | 25.35 | 13.00 | 33.43 |
| 2002 | 27.33 | 17.88 | 31.88 |
| 2003 | 28.39 | 16.78 | 34.59 |
| 2004 | 26.63 | 18.03 | 33.06 |
| 2005 | 29.28 | 15.94 | 34.93 |
| 2006 | 33.56 | 16.51 | 37.28 |
| 2007 | 44.44 | 18.75 | 41.63 |
| 2008 | 57.06 | 24.34 | 43.14 |
| 2009 | 61.42 | 27.54 | 46.70 |
| 2010 | 64.89 | 26.62 | 48.71 |
| 2011 | 63.87 | 25.29 | 48.58 |
| 2012 | 66.29 | 26.88 | 53.18 |
| 2013 | 66.87 | 30.59 | 55.56 |
| 2014 | 68.00 | 36.13 | 62.89 |
| 2015 | 69.81 | 38.24 | 68.65 |
| 2016 | 68.94 | 41.33 | 77.09 |
| 2017 | 70.86 | 48.63 | 80.29 |
| 2018 | 71.01 | 52.58 | 81.58 |
| 2019 | 71.06 | 54.83 | 82.79 |
| 2020 | 73.35 | 56.44 | 83.27 |
| 2021 | 75.81 | 62.59 | 84.54 |
| 2022 | 76.54 | 70.98 | 84.99 |
| 2023 | 75.43 | 66.14 | 85.59 |
| 2024 | 61.05 | 60.77 | 77.94 |