데이터 표
| 1988 | 36% | 2001 | 25.8% | 2014 | 28.7% |
| 1989 | 26.4% | 2002 | 24.4% | 2015 | 26.8% |
| 1990 | 26.6% | 2003 | 25.4% | 2016 | 21.4% |
| 1991 | 29.8% | 2004 | 25.3% | 2017 | 20.5% |
| 1992 | 26% | 2005 | 30.4% | 2018 | 24.3% |
| 1993 | 27.5% | 2006 | 34.3% | 2019 | 27.3% |
| 1994 | 26.5% | 2007 | 30% | 2020 | 23.3% |
| 1995 | 26.9% | 2008 | 33.9% | 2021 | 23% |
| 1996 | 27.7% | 2009 | 28.5% | 2022 | 29.2% |
| 1997 | 27.5% | 2010 | 31.7% | 2023 | 31.2% |
| 1998 | 25.4% | 2011 | 29.7% | 2024 | 26.3% |
| 1999 | 23.9% | 2012 | 28.6% | 2025 | 26.9% |
| 2000 | 24.3% | 2013 | 29% | 2026 | 30.2% |
데이터 표
| 1988 | 47.5억 | 2001 | 142억 | 2014 | 538억 |
| 1989 | 48.6억 | 2002 | 138억 | 2015 | 470억 |
| 1990 | 56.1억 | 2003 | 173억 | 2016 | 344억 |
| 1991 | 67.6억 | 2004 | 206억 | 2017 | 329억 |
| 1992 | 60.9억 | 2005 | 296억 | 2018 | 393억 |
| 1993 | 67.6억 | 2006 | 389억 | 2019 | 435억 |
| 1994 | 75.7억 | 2007 | 401억 | 2020 | 338억 |
| 1995 | 85.1억 | 2008 | 568억 | 2021 | 363억 |
| 1996 | 95.4억 | 2009 | 390억 | 2022 | 539억 |
| 1997 | 99.5억 | 2010 | 439억 | 2023 | 545억 |
| 1998 | 97억 | 2011 | 475억 | 2024 | 453억 |
| 1999 | 101억 | 2012 | 493억 | 2025 | 469억 |
| 2000 | 122억 | 2013 | 528억 | 2026 | 542억 |
데이터 표
| 1988 | 45.3% | 2001 | 25.2% | 2014 | 33% |
| 1989 | 30.9% | 2002 | 24.6% | 2015 | 34.1% |
| 1990 | 27.9% | 2003 | 23.5% | 2016 | 31.2% |
| 1991 | 30% | 2004 | 23.3% | 2017 | 30.9% |
| 1992 | 28.8% | 2005 | 29.5% | 2018 | 30.2% |
| 1993 | 27.3% | 2006 | 34.6% | 2019 | 31% |
| 1994 | 26.5% | 2007 | 26.8% | 2020 | 35.1% |
| 1995 | 26.7% | 2008 | 28.2% | 2021 | 31.4% |
| 1996 | 28.2% | 2009 | 33.4% | 2022 | 28.3% |
| 1997 | 27.4% | 2010 | 31.5% | 2023 | 32.4% |
| 1998 | 27.3% | 2011 | 30.4% | 2024 | 32.2% |
| 1999 | 24.8% | 2012 | 29.9% | 2025 | 32.4% |
| 2000 | 24.1% | 2013 | 31.7% | 2026 | 34.7% |
데이터 표
| 1988 | 59.8억 | 2001 | 139억 | 2014 | 619억 |
| 1989 | 56.8억 | 2002 | 140억 | 2015 | 599억 |
| 1990 | 58.8억 | 2003 | 160억 | 2016 | 503억 |
| 1991 | 68억 | 2004 | 191억 | 2017 | 497억 |
| 1992 | 67.3억 | 2005 | 288억 | 2018 | 488억 |
| 1993 | 67억 | 2006 | 393억 | 2019 | 494억 |
| 1994 | 75.7억 | 2007 | 357억 | 2020 | 510억 |
| 1995 | 84.6억 | 2008 | 473억 | 2021 | 496억 |
| 1996 | 97억 | 2009 | 457억 | 2022 | 521억 |
| 1997 | 99.1억 | 2010 | 437억 | 2023 | 566억 |
| 1998 | 104억 | 2011 | 486억 | 2024 | 555억 |
| 1999 | 105억 | 2012 | 515억 | 2025 | 565억 |
| 2000 | 121억 | 2013 | 577억 | 2026 | 624억 |