데이터 표
| 1989 | 21.1% | 2002 | 24.8% | 2015 | 23.5% |
| 1990 | 26.3% | 2003 | 27.4% | 2016 | 24.3% |
| 1991 | 22.9% | 2004 | 27.7% | 2017 | 21% |
| 1992 | 20.1% | 2005 | 35.5% | 2018 | 23% |
| 1993 | 21.5% | 2006 | 42.6% | 2019 | 24.5% |
| 1994 | 20.1% | 2007 | 37.6% | 2020 | 20% |
| 1995 | 21.2% | 2008 | 48.1% | 2021 | 22.6% |
| 1996 | 24.9% | 2009 | 29.2% | 2022 | 31.8% |
| 1997 | 25.9% | 2010 | 38.5% | 2023 | 26.5% |
| 1998 | 19.9% | 2011 | 43.9% | 2024 | 25.3% |
| 1999 | 24% | 2012 | 37.9% | 2025 | 24.2% |
| 2000 | 23.7% | 2013 | 39.5% | 2026 | 25.2% |
| 2001 | 28.4% | 2014 | 37.8% | | |
데이터 표
| 1989 | 1,666억 | 2002 | 5,754억 | 2015 | 1.65조 |
| 1990 | 2,086억 | 2003 | 6,135억 | 2016 | 1.57조 |
| 1991 | 1,960억 | 2004 | 7,458억 | 2017 | 1.45조 |
| 1992 | 1,744억 | 2005 | 1.25조 | 2018 | 1.89조 |
| 1993 | 1,832억 | 2006 | 1.8조 | 2019 | 2조 |
| 1994 | 2,306억 | 2007 | 1.58조 | 2020 | 1.32조 |
| 1995 | 2,600억 | 2008 | 2.5조 | 2021 | 1.67조 |
| 1996 | 3,620억 | 2009 | 1.33조 | 2022 | 2.76조 |
| 1997 | 3,877억 | 2010 | 2.51조 | 2023 | 2.28조 |
| 1998 | 2,630억 | 2011 | 3.24조 | 2024 | 2.26조 |
| 1999 | 3,906억 | 2012 | 3.42조 | 2025 | 2.19조 |
| 2000 | 6,113억 | 2013 | 3.51조 | 2026 | 2.38조 |
| 2001 | 6,318억 | 2014 | 3.35조 | | |
데이터 표
| 1989 | 20.3% | 2002 | 32.1% | 2015 | 41.3% |
| 1990 | 30.4% | 2003 | 27% | 2016 | 38.8% |
| 1991 | 34.1% | 2004 | 24.4% | 2017 | 26.6% |
| 1992 | 32.8% | 2005 | 22.1% | 2018 | 17.8% |
| 1993 | 32.8% | 2006 | 26.6% | 2019 | 20.2% |
| 1994 | 30.7% | 2007 | 28.6% | 2020 | 21.1% |
| 1995 | 27.6% | 2008 | 24.2% | 2021 | 20.9% |
| 1996 | 15.7% | 2009 | 24.4% | 2022 | 22.8% |
| 1997 | 22.2% | 2010 | 23% | 2023 | 20.7% |
| 1998 | 25.1% | 2011 | 27.9% | 2024 | 21.7% |
| 1999 | 28.8% | 2012 | 30.7% | 2025 | 23.9% |
| 2000 | 22.6% | 2013 | 42.4% | 2026 | 24.8% |
| 2001 | 29.1% | 2014 | 48.6% | | |
데이터 표
| 1989 | 1,604억 | 2002 | 7,458억 | 2015 | 2.9조 |
| 1990 | 2,411억 | 2003 | 6,053억 | 2016 | 2.51조 |
| 1991 | 2,918억 | 2004 | 6,563억 | 2017 | 1.83조 |
| 1992 | 2,845억 | 2005 | 7,758억 | 2018 | 1.46조 |
| 1993 | 2,793억 | 2006 | 1.12조 | 2019 | 1.65조 |
| 1994 | 3,526억 | 2007 | 1.2조 | 2020 | 1.39조 |
| 1995 | 3,383억 | 2008 | 1.26조 | 2021 | 1.55조 |
| 1996 | 2,284억 | 2009 | 1.12조 | 2022 | 1.99조 |
| 1997 | 3,327억 | 2010 | 1.5조 | 2023 | 1.78조 |
| 1998 | 3,312억 | 2011 | 2.06조 | 2024 | 1.94조 |
| 1999 | 4,678억 | 2012 | 2.77조 | 2025 | 2.17조 |
| 2000 | 5,843억 | 2013 | 3.76조 | 2026 | 2.35조 |
| 2001 | 6,475억 | 2014 | 4.3조 | | |