데이터 표
| 1980 | 44.6% | 1996 | 100.2% | 2012 | 87% |
| 1981 | 46.1% | 1997 | 95.3% | 2013 | 87.7% |
| 1982 | 51.7% | 1998 | 93.3% | 2014 | 85.8% |
| 1983 | 57.2% | 1999 | 89% | 2015 | 92.3% |
| 1984 | 60.2% | 2000 | 80.4% | 2016 | 92.5% |
| 1985 | 65.2% | 2001 | 81.5% | 2017 | 91% |
| 1986 | 69.3% | 2002 | 79.6% | 2018 | 90.8% |
| 1987 | 69.8% | 2003 | 75.9% | 2019 | 90.1% |
| 1988 | 69.7% | 2004 | 71.9% | 2020 | 118.1% |
| 1989 | 71% | 2005 | 70.6% | 2021 | 112.6% |
| 1990 | 73.7% | 2006 | 69.9% | 2022 | 103.5% |
| 1991 | 81.7% | 2007 | 67.2% | 2023 | 105.1% |
| 1992 | 88.2% | 2008 | 70.4% | 2024 | 110% |
| 1993 | 94.7% | 2009 | 81.8% | 2025 | 113.5% |
| 1994 | 97.5% | 2010 | 84% | 2026 | 110.7% |
| 1995 | 100.1% | 2011 | 84.3% | | |
데이터 표
| 1980 | 1,439억 | 1996 | 8,619억 | 2012 | 1.59조 |
| 1981 | 1,697억 | 1997 | 8,641억 | 2013 | 1.67조 |
| 1982 | 2,007억 | 1998 | 8,774억 | 2014 | 1.71조 |
| 1983 | 2,410억 | 1999 | 8,967억 | 2015 | 1.84조 |
| 1984 | 2,782억 | 2000 | 8,897억 | 2016 | 1.87조 |
| 1985 | 3,258억 | 2001 | 9,324억 | 2017 | 1.95조 |
| 1986 | 3,651억 | 2002 | 9,502억 | 2018 | 2.03조 |
| 1987 | 4,007억 | 2003 | 9,525억 | 2019 | 2.08조 |
| 1988 | 4,372억 | 2004 | 9,602억 | 2020 | 2.62조 |
| 1989 | 4,767억 | 2005 | 1조 | 2021 | 2.86조 |
| 1990 | 5,129억 | 2006 | 1.05조 | 2022 | 2.97조 |
| 1991 | 5,731억 | 2007 | 1.06조 | 2023 | 3.12조 |
| 1992 | 6,339억 | 2008 | 1.17조 | 2024 | 3.42조 |
| 1993 | 7,077억 | 2009 | 1.29조 | 2025 | 3.68조 |
| 1994 | 7,720억 | 2010 | 1.4조 | 2026 | 3.79조 |
| 1995 | 8,323억 | 2011 | 1.5조 | | |
데이터 표
| 1980 | 14.5% | 1996 | 65.9% | 2012 | 28.6% |
| 1981 | 13.6% | 1997 | 61.5% | 2013 | 27% |
| 1982 | 19.2% | 1998 | 57.5% | 2014 | 22.1% |
| 1983 | 25.7% | 1999 | 50.5% | 2015 | 18.9% |
| 1984 | 29.6% | 2000 | 42% | 2016 | 18.2% |
| 1985 | 35.3% | 2001 | 40.3% | 2017 | 12.8% |
| 1986 | 39.6% | 2002 | 38.9% | 2018 | 11.8% |
| 1987 | 39.3% | 2003 | 35.4% | 2019 | 8.7% |
| 1988 | 38.3% | 2004 | 34.6% | 2020 | 16.2% |
| 1989 | 41.4% | 2005 | 29.3% | 2021 | 14.1% |
| 1990 | 43.9% | 2006 | 25% | 2022 | 13.3% |
| 1991 | 50.3% | 2007 | 22.1% | 2023 | 12.7% |
| 1992 | 56.7% | 2008 | 22.8% | 2024 | 10.8% |
| 1993 | 62.1% | 2009 | 26.9% | 2025 | 10.2% |
| 1994 | 66.2% | 2010 | 28.4% | 2026 | 10.3% |
| 1995 | 66.7% | 2011 | 29% | | |
데이터 표
| 1980 | 467억 | 1996 | 5,664억 | 2012 | 5,228억 |
| 1981 | 500억 | 1997 | 5,580억 | 2013 | 5,139억 |
| 1982 | 747억 | 1998 | 5,405억 | 2014 | 4,405억 |
| 1983 | 1,082억 | 1999 | 5,091억 | 2015 | 3,771억 |
| 1984 | 1,368억 | 2000 | 4,644억 | 2016 | 3,688억 |
| 1985 | 1,763억 | 2001 | 4,611억 | 2017 | 2,743억 |
| 1986 | 2,088억 | 2002 | 4,649억 | 2018 | 2,648억 |
| 1987 | 2,255억 | 2003 | 4,446억 | 2019 | 2,019억 |
| 1988 | 2,404억 | 2004 | 4,624억 | 2020 | 3,606억 |
| 1989 | 2,779억 | 2005 | 4,167억 | 2021 | 3,578억 |
| 1990 | 3,055억 | 2006 | 3,738억 | 2022 | 3,817억 |
| 1991 | 3,530억 | 2007 | 3,488억 | 2023 | 3,778억 |
| 1992 | 4,075억 | 2008 | 3,774억 | 2024 | 3,368억 |
| 1993 | 4,639억 | 2009 | 4,222억 | 2025 | 3,306억 |
| 1994 | 5,239억 | 2010 | 4,728억 | 2026 | 3,535억 |
| 1995 | 5,545억 | 2011 | 5,153억 | | |