데이터 표
| 1992 | 66.7% | 2004 | 46.2% | 2016 | 41.7% |
| 1993 | 78.7% | 2005 | 39.4% | 2017 | 40.2% |
| 1994 | 75.3% | 2006 | 33.2% | 2018 | 38.5% |
| 1995 | 71.5% | 2007 | 29.5% | 2019 | 38.3% |
| 1996 | 68.3% | 2008 | 35.5% | 2020 | 45.2% |
| 1997 | 64.4% | 2009 | 43% | 2021 | 39.6% |
| 1998 | 60.3% | 2010 | 46.1% | 2022 | 33.3% |
| 1999 | 56.8% | 2011 | 50% | 2023 | 33% |
| 2000 | 53.6% | 2012 | 48.7% | 2024 | 30.5% |
| 2001 | 50.1% | 2013 | 47.8% | 2025 | 27.5% |
| 2002 | 50.3% | 2014 | 48.7% | 2026 | 27.4% |
| 2003 | 48.2% | 2015 | 44.6% | | |
데이터 표
| 1992 | 6,163억 | 2004 | 6,977억 | 2016 | 8,762억 |
| 1993 | 7,300억 | 2005 | 6,259억 | 2017 | 8,792억 |
| 1994 | 7,473억 | 2006 | 5,593억 | 2018 | 8,646억 |
| 1995 | 7,400억 | 2007 | 5,139억 | 2019 | 8,831억 |
| 1996 | 7,427억 | 2008 | 6,432억 | 2020 | 1.05조 |
| 1997 | 7,367억 | 2009 | 7,445억 | 2021 | 1.01조 |
| 1998 | 7,149억 | 2010 | 8,362억 | 2022 | 9,433억 |
| 1999 | 7,047억 | 2011 | 9,240억 | 2023 | 9,190억 |
| 2000 | 7,101억 | 2012 | 9,221억 | 2024 | 8,940억 |
| 2001 | 6,875억 | 2013 | 9,246억 | 2025 | 8,418억 |
| 2002 | 7,103억 | 2014 | 9,646억 | 2026 | 8,716억 |
| 2003 | 6,930억 | 2015 | 9,045억 | | |
데이터 표
| 1995 | 50.2% | 2006 | 16.5% | 2017 | 15.7% |
| 1996 | 50% | 2007 | 11.6% | 2018 | 13.3% |
| 1997 | 48.3% | 2008 | 8.4% | 2019 | 12.3% |
| 1998 | 45.4% | 2009 | 12.2% | 2020 | 14.2% |
| 1999 | 42% | 2010 | 16.1% | 2021 | 8.9% |
| 2000 | 39.7% | 2011 | 16.5% | 2022 | 4.6% |
| 2001 | 35.7% | 2012 | 19.8% | 2023 | 1.3% |
| 2002 | 36.5% | 2013 | 19.2% | 2024 | -3.3% |
| 2003 | 35.6% | 2014 | 19.3% | 2025 | -6% |
| 2004 | 32.3% | 2015 | 19.1% | 2026 | -5.9% |
| 2005 | 25.9% | 2016 | 18.8% | | |
데이터 표
| 1995 | 5,200억 | 2006 | 2,784억 | 2017 | 3,444억 |
| 1996 | 5,432억 | 2007 | 2,031억 | 2018 | 2,977억 |
| 1997 | 5,522억 | 2008 | 1,519억 | 2019 | 2,822억 |
| 1998 | 5,385억 | 2009 | 2,118억 | 2020 | 3,310억 |
| 1999 | 5,214억 | 2010 | 2,925억 | 2021 | 2,269억 |
| 2000 | 5,270억 | 2011 | 3,057억 | 2022 | 1,309억 |
| 2001 | 4,893억 | 2012 | 3,755억 | 2023 | 353억 |
| 2002 | 5,151억 | 2013 | 3,709억 | 2024 | -952억 |
| 2003 | 5,118억 | 2014 | 3,828억 | 2025 | -1,824억 |
| 2004 | 4,873억 | 2015 | 3,877억 | 2026 | -1,875억 |
| 2005 | 4,115억 | 2016 | 3,943억 | | |