데이터 표
| 1980 | 47.9% | 1996 | 28.6% | 2012 | 30.2% |
| 1981 | 43.5% | 1997 | 26% | 2013 | 30.6% |
| 1982 | 38.6% | 1998 | 23.8% | 2014 | 28.8% |
| 1983 | 35.5% | 1999 | 25.1% | 2015 | 33.2% |
| 1984 | 35.3% | 2000 | 28.8% | 2016 | 36.7% |
| 1985 | 37% | 2001 | 27.3% | 2017 | 36.9% |
| 1986 | 46.1% | 2002 | 34% | 2018 | 38.1% |
| 1987 | 38.6% | 2003 | 43.1% | 2019 | 39% |
| 1988 | 32.6% | 2004 | 43.8% | 2020 | 44.3% |
| 1989 | 32.5% | 2005 | 42.1% | 2021 | 40.1% |
| 1990 | 29.1% | 2006 | 52.2% | 2022 | 34.8% |
| 1991 | 39.5% | 2007 | 48.9% | 2023 | 42.4% |
| 1992 | 45.3% | 2008 | 46.8% | 2024 | 52.8% |
| 1993 | 54% | 2009 | 41.7% | 2025 | 45% |
| 1994 | 51% | 2010 | 42.1% | 2026 | 42.9% |
| 1995 | 32.9% | 2011 | 28.9% | | |
데이터 표
| 1980 | 1,518억 | 1996 | 3,000억 | 2012 | 9,215억 |
| 1981 | 1,584억 | 1997 | 2,940억 | 2013 | 9,702억 |
| 1982 | 1,556억 | 1998 | 2,743억 | 2014 | 9,362억 |
| 1983 | 1,592억 | 1999 | 3,161억 | 2015 | 1.07조 |
| 1984 | 1,783억 | 2000 | 4,326억 | 2016 | 1.18조 |
| 1985 | 2,076억 | 2001 | 4,267억 | 2017 | 1.27조 |
| 1986 | 2,677억 | 2002 | 5,309억 | 2018 | 1.41조 |
| 1987 | 2,446억 | 2003 | 6,996억 | 2019 | 1.46조 |
| 1988 | 2,154억 | 2004 | 7,837억 | 2020 | 1.59조 |
| 1989 | 2,292억 | 2005 | 8,453억 | 2021 | 1.8조 |
| 1990 | 2,170억 | 2006 | 1.17조 | 2022 | 2.07조 |
| 1991 | 3,100억 | 2007 | 1.17조 | 2023 | 2.25조 |
| 1992 | 3,659억 | 2008 | 1.25조 | 2024 | 2.84조 |
| 1993 | 4,589억 | 2009 | 1.04조 | 2025 | 2.48조 |
| 1994 | 4,544억 | 2010 | 1.12조 | 2026 | 2.49조 |
| 1995 | 3,153억 | 2011 | 8,320억 | | |
데이터 표
| 1980 | 0.1% | 1996 | -14.2% | 2012 | -47.6% |
| 1981 | -0.6% | 1997 | -16.2% | 2013 | -58.2% |
| 1982 | -1.4% | 1998 | -17.9% | 2014 | -72.2% |
| 1983 | -2.4% | 1999 | -18.8% | 2015 | -82.5% |
| 1984 | -3.6% | 2000 | -21.5% | 2016 | -81.1% |
| 1985 | -4.6% | 2001 | -29.9% | 2017 | -76.1% |
| 1986 | -5.9% | 2002 | -29.6% | 2018 | -68.7% |
| 1987 | -6% | 2003 | -33.8% | 2019 | -71.6% |
| 1988 | -10.3% | 2004 | -38.7% | 2020 | -76% |
| 1989 | -10% | 2005 | -44.5% | 2021 | -80.2% |
| 1990 | -10% | 2006 | -52.1% | 2022 | -61.5% |
| 1991 | -11.8% | 2007 | -49.6% | 2023 | -106.4% |
| 1992 | -11.1% | 2008 | -47.3% | 2024 | -149.3% |
| 1993 | -10.2% | 2009 | -42.1% | 2025 | -160.2% |
| 1994 | -9.7% | 2010 | -45.4% | 2026 | -163.5% |
| 1995 | -12.9% | 2011 | -46.1% | | |
데이터 표
| 1980 | 3.55억 | 1996 | -1,487억 | 2012 | -1.45조 |
| 1981 | -23억 | 1997 | -1,831억 | 2013 | -1.85조 |
| 1982 | -54.6억 | 1998 | -2,067억 | 2014 | -2.35조 |
| 1983 | -107억 | 1999 | -2,367억 | 2015 | -2.66조 |
| 1984 | -180억 | 2000 | -3,228억 | 2016 | -2.61조 |
| 1985 | -255억 | 2001 | -4,663억 | 2017 | -2.62조 |
| 1986 | -344억 | 2002 | -4,613억 | 2018 | -2.54조 |
| 1987 | -382억 | 2003 | -5,482억 | 2019 | -2.67조 |
| 1988 | -678억 | 2004 | -6,922억 | 2020 | -2.74조 |
| 1989 | -705억 | 2005 | -8,923억 | 2021 | -3.6조 |
| 1990 | -745억 | 2006 | -1.17조 | 2022 | -3.65조 |
| 1991 | -930억 | 2007 | -1.18조 | 2023 | -5.65조 |
| 1992 | -896억 | 2008 | -1.26조 | 2024 | -8.04조 |
| 1993 | -869억 | 2009 | -1.05조 | 2025 | -8.84조 |
| 1994 | -863억 | 2010 | -1.21조 | 2026 | -9.48조 |
| 1995 | -1,232억 | 2011 | -1.33조 | | |