데이터 표
| 1990 | 19% | 2002 | 13.9% | 2014 | 11.2% |
| 1991 | 18.4% | 2003 | 13.2% | 2015 | 12.6% |
| 1992 | 18.1% | 2004 | 12.9% | 2016 | 13.2% |
| 1993 | 17.4% | 2005 | 14.2% | 2017 | 12.8% |
| 1994 | 16.7% | 2006 | 14.6% | 2018 | 12.6% |
| 1995 | 17.7% | 2007 | 14.1% | 2019 | 11.9% |
| 1996 | 16.2% | 2008 | 13.2% | 2020 | 8.8% |
| 1997 | 15.7% | 2009 | 12.7% | 2021 | 8.3% |
| 1998 | 14.6% | 2010 | 12.6% | 2022 | 8.4% |
| 1999 | 14.9% | 2011 | 13.1% | 2023 | 11.2% |
| 2000 | 14% | 2012 | 11.9% | 2024 | 13.7% |
| 2001 | 13.9% | 2013 | 11.6% | | |
데이터 표
| 1990 | 747억 | 2002 | 2,690억 | 2014 | 1.2조 |
| 1991 | 840억 | 2003 | 2,844억 | 2015 | 1.46조 |
| 1992 | 941억 | 2004 | 3,202억 | 2016 | 1.69조 |
| 1993 | 1,064억 | 2005 | 4,124억 | 2017 | 1.84조 |
| 1994 | 1,183억 | 2006 | 5,079억 | 2018 | 1.93조 |
| 1995 | 1,442억 | 2007 | 5,956억 | 2019 | 1.9조 |
| 1996 | 1,523억 | 2008 | 6,865억 | 2020 | 1.37조 |
| 1997 | 1,710억 | 2009 | 7,256억 | 2021 | 1.46조 |
| 1998 | 1,817억 | 2010 | 8,342억 | 2022 | 2.01조 |
| 1999 | 2,020억 | 2011 | 9,830억 | 2023 | 3.07조 |
| 2000 | 2,147억 | 2012 | 1.07조 | 2024 | 4.09조 |
| 2001 | 2,398억 | 2013 | 1.15조 | | |
데이터 표
| 1990 | 25.4% | 2002 | 20.8% | 2014 | 17.2% |
| 1991 | 26.4% | 2003 | 19.3% | 2015 | 19.3% |
| 1992 | 23% | 2004 | 19.3% | 2016 | 18.2% |
| 1993 | 23.2% | 2005 | 20.1% | 2017 | 17.9% |
| 1994 | 24.1% | 2006 | 20.5% | 2018 | 17.5% |
| 1995 | 24.8% | 2007 | 19.9% | 2019 | 19.5% |
| 1996 | 23.1% | 2008 | 19.1% | 2020 | 22.1% |
| 1997 | 21.4% | 2009 | 21% | 2021 | 20% |
| 1998 | 21.4% | 2010 | 19.3% | 2022 | 18.6% |
| 1999 | 20.5% | 2011 | 19.1% | 2023 | 19.5% |
| 2000 | 21.7% | 2012 | 17.3% | 2024 | 19.1% |
| 2001 | 22.4% | 2013 | 16.6% | | |
데이터 표
| 1990 | 998억 | 2002 | 4,026억 | 2014 | 1.85조 |
| 1991 | 1,204억 | 2003 | 4,171억 | 2015 | 2.23조 |
| 1992 | 1,198억 | 2004 | 4,765억 | 2016 | 2.33조 |
| 1993 | 1,417억 | 2005 | 5,846억 | 2017 | 2.57조 |
| 1994 | 1,708억 | 2006 | 7,135억 | 2018 | 2.69조 |
| 1995 | 2,023억 | 2007 | 8,415억 | 2019 | 3.1조 |
| 1996 | 2,171억 | 2008 | 9,959억 | 2020 | 3.46조 |
| 1997 | 2,332억 | 2009 | 1.2조 | 2021 | 3.52조 |
| 1998 | 2,662억 | 2010 | 1.28조 | 2022 | 4.47조 |
| 1999 | 2,775억 | 2011 | 1.43조 | 2023 | 5.36조 |
| 2000 | 3,344억 | 2012 | 1.56조 | 2024 | 5.71조 |
| 2001 | 3,858억 | 2013 | 1.65조 | | |