데이터 표
| 1980 | 10.7% | 1996 | 10.7% | 2012 | 11.7% |
| 1981 | 11.1% | 1997 | 9.9% | 2013 | 12% |
| 1982 | 10.5% | 1998 | 9.7% | 2014 | 13.7% |
| 1983 | 10.7% | 1999 | 10.2% | 2015 | 13.1% |
| 1984 | 12% | 2000 | 10.6% | 2016 | 13.8% |
| 1985 | 11.5% | 2001 | 10.5% | 2017 | 14% |
| 1986 | 12.7% | 2002 | 11.7% | 2018 | 13.4% |
| 1987 | 13.2% | 2003 | 12.7% | 2019 | 11.3% |
| 1988 | 11.3% | 2004 | 10.8% | 2020 | 13.3% |
| 1989 | 11.8% | 2005 | 10.7% | 2021 | 12.4% |
| 1990 | 12.1% | 2006 | 11.7% | 2022 | 12.1% |
| 1991 | 10.6% | 2007 | 11.9% | 2023 | 11.5% |
| 1992 | 11.4% | 2008 | 12.1% | 2024 | 12.6% |
| 1993 | 11.5% | 2009 | 12.8% | 2025 | 15.8% |
| 1994 | 10.9% | 2010 | 12.9% | 2026 | 15.8% |
| 1995 | 10.1% | 2011 | 11.7% | | |
데이터 표
| 1980 | 407억 | 1996 | 3,706억 | 2012 | 2.61조 |
| 1981 | 503억 | 1997 | 3,917억 | 2013 | 3.01조 |
| 1982 | 553억 | 1998 | 4,230억 | 2014 | 3.84조 |
| 1983 | 634억 | 1999 | 4,886억 | 2015 | 3.98조 |
| 1984 | 821억 | 2000 | 5,460억 | 2016 | 4.51조 |
| 1985 | 885억 | 2001 | 5,935억 | 2017 | 4.96조 |
| 1986 | 1,062억 | 2002 | 7,072억 | 2018 | 5.26조 |
| 1987 | 1,230억 | 2003 | 8,382억 | 2019 | 4.93조 |
| 1988 | 1,241억 | 2004 | 8,247억 | 2020 | 6.31조 |
| 1989 | 1,479억 | 2005 | 9,194억 | 2021 | 6.93조 |
| 1990 | 1,690억 | 2006 | 1.13조 | 2022 | 8.08조 |
| 1991 | 1,757억 | 2007 | 1.33조 | 2023 | 9.65조 |
| 1992 | 2,243억 | 2008 | 1.53조 | 2024 | 13.32조 |
| 1993 | 2,500억 | 2009 | 1.88조 | 2025 | 18.05조 |
| 1994 | 2,779억 | 2010 | 2.13조 | 2026 | 20.13조 |
| 1995 | 3,074억 | 2011 | 2.31조 | | |
데이터 표
| 1993 | 17% | 2005 | 13% | 2017 | 19.1% |
| 1994 | 14.5% | 2006 | 14.5% | 2018 | 19.1% |
| 1995 | 14% | 2007 | 16.1% | 2019 | 19.1% |
| 1996 | 15% | 2008 | 18% | 2020 | 20.3% |
| 1997 | 13.7% | 2009 | 17.3% | 2021 | 18.5% |
| 1998 | 14.1% | 2010 | 18.3% | 2022 | 20% |
| 1999 | 13.2% | 2011 | 17.9% | 2023 | 19.3% |
| 2000 | 13.8% | 2012 | 19.4% | 2024 | 19.4% |
| 2001 | 12.9% | 2013 | 19.5% | 2025 | 21.2% |
| 2002 | 14.4% | 2014 | 18.1% | 2026 | 19% |
| 2003 | 12.9% | 2015 | 17.8% | | |
| 2004 | 12.1% | 2016 | 17.7% | | |
데이터 표
| 1993 | 3,705억 | 2005 | 1.12조 | 2017 | 6.8조 |
| 1994 | 3,705억 | 2006 | 1.4조 | 2018 | 7.49조 |
| 1995 | 4,264억 | 2007 | 1.8조 | 2019 | 8.35조 |
| 1996 | 5,208억 | 2008 | 2.28조 | 2020 | 9.65조 |
| 1997 | 5,452억 | 2009 | 2.54조 | 2021 | 10.31조 |
| 1998 | 6,184억 | 2010 | 3.02조 | 2022 | 13.3조 |
| 1999 | 6,361억 | 2011 | 3.54조 | 2023 | 16.14조 |
| 2000 | 7,113억 | 2012 | 4.34조 | 2024 | 20.48조 |
| 2001 | 7,323억 | 2013 | 4.88조 | 2025 | 24.17조 |
| 2002 | 8,662억 | 2014 | 5.06조 | 2026 | 24.21조 |
| 2003 | 8,460억 | 2015 | 5.43조 | | |
| 2004 | 9,229억 | 2016 | 5.8조 | | |