데이터 표
| 1988 | 57.7% | 2001 | 67.2% | 2014 | 85.2% |
| 1989 | 56.6% | 2002 | 67.4% | 2015 | 85.6% |
| 1990 | 56.2% | 2003 | 66.4% | 2016 | 83.4% |
| 1991 | 56.4% | 2004 | 65.9% | 2017 | 79.1% |
| 1992 | 56.3% | 2005 | 69.4% | 2018 | 74.6% |
| 1993 | 61% | 2006 | 68.2% | 2019 | 71% |
| 1994 | 64.1% | 2007 | 65.8% | 2020 | 83.2% |
| 1995 | 68.2% | 2008 | 69.5% | 2021 | 82.4% |
| 1996 | 68.2% | 2009 | 80.8% | 2022 | 78.1% |
| 1997 | 63.4% | 2010 | 83.7% | 2023 | 77.8% |
| 1998 | 69.2% | 2011 | 83.4% | 2024 | 79.2% |
| 1999 | 61.3% | 2012 | 82.9% | 2025 | 80.5% |
| 2000 | 66.1% | 2013 | 82.4% | 2026 | 82.1% |
데이터 표
| 1988 | 686억 | 2001 | 1,475억 | 2014 | 2,813억 |
| 1989 | 721억 | 2002 | 1,518억 | 2015 | 2,929억 |
| 1990 | 769억 | 2003 | 1,531억 | 2016 | 2,967억 |
| 1991 | 828억 | 2004 | 1,585억 | 2017 | 2,904억 |
| 1992 | 873억 | 2005 | 1,752억 | 2018 | 2,858억 |
| 1993 | 976억 | 2006 | 1,813억 | 2019 | 2,810억 |
| 1994 | 1,076억 | 2007 | 1,857억 | 2020 | 3,164억 |
| 1995 | 1,198억 | 2008 | 2,029억 | 2021 | 3,347억 |
| 1996 | 1,238억 | 2009 | 2,312억 | 2022 | 3,512억 |
| 1997 | 1,190억 | 2010 | 2,460억 | 2023 | 3,715억 |
| 1998 | 1,351억 | 2011 | 2,569억 | 2024 | 3,912억 |
| 1999 | 1,246억 | 2012 | 2,626억 | 2025 | 4,133억 |
| 2000 | 1,404억 | 2013 | 2,648억 | 2026 | 4,340억 |
데이터 표
| 1999 | 40.5% | 2009 | 57.7% | 2019 | 48.2% |
| 2000 | 44% | 2010 | 61.6% | 2020 | 59.4% |
| 2001 | 43% | 2011 | 61.3% | 2021 | 60.2% |
| 2002 | 44.5% | 2012 | 61.6% | 2022 | 58% |
| 2003 | 44.1% | 2013 | 61.7% | 2023 | 58.9% |
| 2004 | 47.1% | 2014 | 60.3% | 2024 | 60.9% |
| 2005 | 51% | 2015 | 59.2% | 2025 | 62.9% |
| 2006 | 50.7% | 2016 | 57.4% | 2026 | 65% |
| 2007 | 49.7% | 2017 | 56.2% | | |
| 2008 | 50.2% | 2018 | 51% | | |
데이터 표
| 1999 | 823억 | 2009 | 1,652억 | 2019 | 1,907억 |
| 2000 | 934억 | 2010 | 1,811억 | 2020 | 2,260억 |
| 2001 | 944억 | 2011 | 1,889억 | 2021 | 2,444억 |
| 2002 | 1,002억 | 2012 | 1,950억 | 2022 | 2,608억 |
| 2003 | 1,016억 | 2013 | 1,980억 | 2023 | 2,812억 |
| 2004 | 1,133억 | 2014 | 1,992억 | 2024 | 3,009억 |
| 2005 | 1,287억 | 2015 | 2,026억 | 2025 | 3,230억 |
| 2006 | 1,348억 | 2016 | 2,042억 | 2026 | 3,437억 |
| 2007 | 1,403억 | 2017 | 2,062억 | | |
| 2008 | 1,464억 | 2018 | 1,955억 | | |