데이터 표
| 1990 | 17% | 2003 | 16.3% | 2016 | 18.5% |
| 1991 | 16.5% | 2004 | 16.1% | 2017 | 18.8% |
| 1992 | 17.2% | 2005 | 14.9% | 2018 | 17.5% |
| 1993 | 18.9% | 2006 | 14.4% | 2019 | 17.8% |
| 1994 | 19.6% | 2007 | 16.1% | 2020 | 17.3% |
| 1995 | 18.6% | 2008 | 17.6% | 2021 | 16.5% |
| 1996 | 20.1% | 2009 | 15.8% | 2022 | 16.1% |
| 1997 | 20.2% | 2010 | 15.9% | 2023 | 18.1% |
| 1998 | 20.5% | 2011 | 17.6% | 2024 | 18% |
| 1999 | 21.1% | 2012 | 17.2% | 2025 | 19.6% |
| 2000 | 20.7% | 2013 | 16.9% | 2026 | 19.4% |
| 2001 | 19.4% | 2014 | 17.2% | | |
| 2002 | 18.2% | 2015 | 17.3% | | |
데이터 표
| 1990 | 123억 | 2003 | 285억 | 2016 | 835억 |
| 1991 | 132억 | 2004 | 320억 | 2017 | 905억 |
| 1992 | 152억 | 2005 | 326억 | 2018 | 902억 |
| 1993 | 192억 | 2006 | 352억 | 2019 | 913억 |
| 1994 | 217억 | 2007 | 448억 | 2020 | 856억 |
| 1995 | 239억 | 2008 | 474억 | 2021 | 1,029억 |
| 1996 | 277억 | 2009 | 466억 | 2022 | 1,134억 |
| 1997 | 303억 | 2010 | 534억 | 2023 | 1,264억 |
| 1998 | 290억 | 2011 | 627억 | 2024 | 1,396억 |
| 1999 | 318억 | 2012 | 638억 | 2025 | 1,584억 |
| 2000 | 350억 | 2013 | 655억 | 2026 | 1,632억 |
| 2001 | 311억 | 2014 | 696억 | | |
| 2002 | 304억 | 2015 | 738억 | | |
데이터 표
| 1990 | 15.1% | 2003 | 15.6% | 2016 | 15.2% |
| 1991 | 15.9% | 2004 | 14.1% | 2017 | 13.6% |
| 1992 | 14.5% | 2005 | 12.4% | 2018 | 13.9% |
| 1993 | 14.5% | 2006 | 12.3% | 2019 | 14% |
| 1994 | 11.7% | 2007 | 9% | 2020 | 24% |
| 1995 | 13.8% | 2008 | 14% | 2021 | 15.4% |
| 1996 | 18.1% | 2009 | 15.9% | 2022 | 14.9% |
| 1997 | 14.5% | 2010 | 10.2% | 2023 | 14.6% |
| 1998 | 18.1% | 2011 | 9.7% | 2024 | 14.3% |
| 1999 | 15.9% | 2012 | 9.8% | 2025 | 15.5% |
| 2000 | 16.1% | 2013 | 10.9% | 2026 | 16.1% |
| 2001 | 18.2% | 2014 | 12.6% | | |
| 2002 | 15.9% | 2015 | 14.4% | | |
데이터 표
| 1990 | 109억 | 2003 | 273억 | 2016 | 689억 |
| 1991 | 127억 | 2004 | 279억 | 2017 | 654억 |
| 1992 | 128억 | 2005 | 270억 | 2018 | 713억 |
| 1993 | 148억 | 2006 | 300억 | 2019 | 720억 |
| 1994 | 130억 | 2007 | 250억 | 2020 | 1,187억 |
| 1995 | 177억 | 2008 | 377억 | 2021 | 959억 |
| 1996 | 250억 | 2009 | 468억 | 2022 | 1,049억 |
| 1997 | 218억 | 2010 | 343억 | 2023 | 1,025억 |
| 1998 | 255억 | 2011 | 344억 | 2024 | 1,103억 |
| 1999 | 239억 | 2012 | 365억 | 2025 | 1,248억 |
| 2000 | 272억 | 2013 | 424억 | 2026 | 1,353억 |
| 2001 | 291억 | 2014 | 509억 | | |
| 2002 | 266억 | 2015 | 616억 | | |