데이터 표
| 1990 | 26.9% | 2003 | 21.7% | 2016 | 25.1% |
| 1991 | 26.8% | 2004 | 23% | 2017 | 23.7% |
| 1992 | 28.7% | 2005 | 25% | 2018 | 23.9% |
| 1993 | 28.2% | 2006 | 24.1% | 2019 | 23.9% |
| 1994 | 26% | 2007 | 24.7% | 2020 | 23.2% |
| 1995 | 21.9% | 2008 | 29.4% | 2021 | 20.1% |
| 1996 | 21.9% | 2009 | 27.1% | 2022 | 19.5% |
| 1997 | 22.1% | 2010 | 25.6% | 2023 | 18.1% |
| 1998 | 20.4% | 2011 | 24.1% | 2024 | 18.6% |
| 1999 | 18.3% | 2012 | 24.4% | 2025 | 18.8% |
| 2000 | 19.2% | 2013 | 26.5% | 2026 | 19.1% |
| 2001 | 17.4% | 2014 | 22.1% | | |
| 2002 | 18.8% | 2015 | 26.4% | | |
데이터 표
| 1990 | 304억 | 2003 | 340억 | 2016 | 1,163억 |
| 1991 | 310억 | 2004 | 383억 | 2017 | 1,161억 |
| 1992 | 343억 | 2005 | 443억 | 2018 | 1,239억 |
| 1993 | 328억 | 2006 | 463억 | 2019 | 1,314억 |
| 1994 | 319억 | 2007 | 523억 | 2020 | 1,297억 |
| 1995 | 272억 | 2008 | 723억 | 2021 | 1,210억 |
| 1996 | 270억 | 2009 | 687억 | 2022 | 1,233억 |
| 1997 | 278억 | 2010 | 702억 | 2023 | 1,257억 |
| 1998 | 262억 | 2011 | 745억 | 2024 | 1,375억 |
| 1999 | 247억 | 2012 | 826억 | 2025 | 1,466억 |
| 2000 | 267억 | 2013 | 962억 | 2026 | 1,602억 |
| 2001 | 250억 | 2014 | 871억 | | |
| 2002 | 280억 | 2015 | 1,138억 | | |
데이터 표
| 1990 | 30.2% | 2003 | 25.8% | 2016 | 25.9% |
| 1991 | 27.7% | 2004 | 26.7% | 2017 | 23.9% |
| 1992 | 34.9% | 2005 | 26.2% | 2018 | 25.9% |
| 1993 | 35.3% | 2006 | 23.9% | 2019 | 24.9% |
| 1994 | 30.9% | 2007 | 26.6% | 2020 | 25.8% |
| 1995 | 27% | 2008 | 28.8% | 2021 | 23.1% |
| 1996 | 23.7% | 2009 | 31% | 2022 | 21% |
| 1997 | 25% | 2010 | 26.6% | 2023 | 21.6% |
| 1998 | 24% | 2011 | 25.3% | 2024 | 21.3% |
| 1999 | 23.5% | 2012 | 26.5% | 2025 | 19.5% |
| 2000 | 23.2% | 2013 | 26.8% | 2026 | 19.5% |
| 2001 | 21% | 2014 | 29% | | |
| 2002 | 23.4% | 2015 | 42% | | |
데이터 표
| 1990 | 341억 | 2003 | 405억 | 2016 | 1,198억 |
| 1991 | 320억 | 2004 | 444억 | 2017 | 1,172억 |
| 1992 | 416억 | 2005 | 464억 | 2018 | 1,342억 |
| 1993 | 411억 | 2006 | 458억 | 2019 | 1,368억 |
| 1994 | 380억 | 2007 | 562억 | 2020 | 1,441억 |
| 1995 | 335억 | 2008 | 708억 | 2021 | 1,394억 |
| 1996 | 292억 | 2009 | 786억 | 2022 | 1,327억 |
| 1997 | 314억 | 2010 | 731억 | 2023 | 1,498억 |
| 1998 | 308억 | 2011 | 782억 | 2024 | 1,573억 |
| 1999 | 317억 | 2012 | 895억 | 2025 | 1,521억 |
| 2000 | 322억 | 2013 | 974억 | 2026 | 1,640억 |
| 2001 | 302억 | 2014 | 1,144억 | | |
| 2002 | 348억 | 2015 | 1,808억 | | |