데이터 표
| 1980 | 11.7% | 1996 | 10.4% | 2012 | 9.3% |
| 1981 | 8.2% | 1997 | 12.5% | 2013 | 9.3% |
| 1982 | 7.3% | 1998 | 11.6% | 2014 | 10.6% |
| 1983 | 7.4% | 1999 | 13.1% | 2015 | 10.2% |
| 1984 | 7.9% | 2000 | 13% | 2016 | 12.4% |
| 1985 | 9.5% | 2001 | 11.7% | 2017 | 12.8% |
| 1986 | 8.8% | 2002 | 8.4% | 2018 | 13% |
| 1987 | 8.3% | 2003 | 13.2% | 2019 | 13.9% |
| 1988 | 10.9% | 2004 | 17.5% | 2020 | 12.4% |
| 1989 | 12.1% | 2005 | 15.9% | 2021 | 11.1% |
| 1990 | 12.9% | 2006 | 12.8% | 2022 | 10.8% |
| 1991 | 9.1% | 2007 | 13.8% | 2023 | 13.6% |
| 1992 | 11.2% | 2008 | 14% | 2024 | 13.6% |
| 1993 | 10.7% | 2009 | 10.2% | 2025 | 11.3% |
| 1994 | 9.5% | 2010 | 11.5% | 2026 | 12.5% |
| 1995 | 9.4% | 2011 | 10% | | |
데이터 표
| 1980 | 258억 | 1996 | 4,176억 | 2012 | 2.36조 |
| 1981 | 212억 | 1997 | 5,406억 | 2013 | 2.55조 |
| 1982 | 245억 | 1998 | 5,569억 | 2014 | 3.2조 |
| 1983 | 298억 | 1999 | 7,020억 | 2015 | 3.38조 |
| 1984 | 354억 | 2000 | 8,142억 | 2016 | 4.68조 |
| 1985 | 477억 | 2001 | 8,381억 | 2017 | 5.27조 |
| 1986 | 519억 | 2002 | 6,106억 | 2018 | 5.97조 |
| 1987 | 568억 | 2003 | 1.04조 | 2019 | 7.11조 |
| 1988 | 975억 | 2004 | 1.65조 | 2020 | 6.13조 |
| 1989 | 1,235억 | 2005 | 1.86조 | 2021 | 6.09조 |
| 1990 | 1,510억 | 2006 | 1.75조 | 2022 | 6.77조 |
| 1991 | 1,085억 | 2007 | 2.2조 | 2023 | 9.65조 |
| 1992 | 1,549억 | 2008 | 2.56조 | 2024 | 10.84조 |
| 1993 | 1,670억 | 2009 | 1.93조 | 2025 | 10.03조 |
| 1994 | 2,045억 | 2010 | 2.4조 | 2026 | 12.32조 |
| 1995 | 3,082억 | 2011 | 2.34조 | | |
데이터 표
| 1980 | 22.7% | 1996 | 14.4% | 2012 | 11.5% |
| 1981 | 18.2% | 1997 | 14.5% | 2013 | 12.7% |
| 1982 | 14.3% | 1998 | 16.9% | 2014 | 12.6% |
| 1983 | 13.4% | 1999 | 15.5% | 2015 | 13% |
| 1984 | 13.9% | 2000 | 15.3% | 2016 | 13.5% |
| 1985 | 11.8% | 2001 | 15.3% | 2017 | 14.9% |
| 1986 | 11.1% | 2002 | 12.4% | 2018 | 14.4% |
| 1987 | 10.4% | 2003 | 16.6% | 2019 | 15.4% |
| 1988 | 11.4% | 2004 | 21.7% | 2020 | 16.4% |
| 1989 | 15.5% | 2005 | 18.4% | 2021 | 13.9% |
| 1990 | 13.3% | 2006 | 18.5% | 2022 | 16.2% |
| 1991 | 13.5% | 2007 | 16.1% | 2023 | 17.7% |
| 1992 | 16.2% | 2008 | 15.7% | 2024 | 16.1% |
| 1993 | 17.1% | 2009 | 12.5% | 2025 | 13.5% |
| 1994 | 16.7% | 2010 | 12.3% | 2026 | 17.1% |
| 1995 | 14.5% | 2011 | 12% | | |
데이터 표
| 1980 | 500억 | 1996 | 5,767억 | 2012 | 2.93조 |
| 1981 | 470억 | 1997 | 6,273억 | 2013 | 3.48조 |
| 1982 | 478억 | 1998 | 8,112억 | 2014 | 3.8조 |
| 1983 | 542억 | 1999 | 8,321억 | 2015 | 4.33조 |
| 1984 | 628억 | 2000 | 9,616억 | 2016 | 5.1조 |
| 1985 | 597억 | 2001 | 1.1조 | 2017 | 6.14조 |
| 1986 | 651억 | 2002 | 9,099억 | 2018 | 6.59조 |
| 1987 | 714억 | 2003 | 1.31조 | 2019 | 7.84조 |
| 1988 | 1,026억 | 2004 | 2.05조 | 2020 | 8.09조 |
| 1989 | 1,576억 | 2005 | 2.15조 | 2021 | 7.64조 |
| 1990 | 1,568억 | 2006 | 2.53조 | 2022 | 10.2조 |
| 1991 | 1,611억 | 2007 | 2.57조 | 2023 | 12.6조 |
| 1992 | 2,242억 | 2008 | 2.88조 | 2024 | 12.82조 |
| 1993 | 2,656억 | 2009 | 2.35조 | 2025 | 11.98조 |
| 1994 | 3,608억 | 2010 | 2.56조 | 2026 | 16.87조 |
| 1995 | 4,748억 | 2011 | 2.82조 | | |