데이터 표
| 1980 | 36.9% | 1996 | 42.8% | 2012 | 38.4% |
| 1981 | 38.9% | 1997 | 43.5% | 2013 | 38.5% |
| 1982 | 39.5% | 1998 | 43.5% | 2014 | 38.5% |
| 1983 | 39% | 1999 | 43.4% | 2015 | 40% |
| 1984 | 38.8% | 2000 | 43.2% | 2016 | 40.3% |
| 1985 | 38.7% | 2001 | 41.6% | 2017 | 40.3% |
| 1986 | 39.5% | 2002 | 40.2% | 2018 | 41% |
| 1987 | 39.7% | 2003 | 40.1% | 2019 | 40.6% |
| 1988 | 40.3% | 2004 | 39.9% | 2020 | 41.4% |
| 1989 | 40.5% | 2005 | 40.1% | 2021 | 42.4% |
| 1990 | 42.2% | 2006 | 40.5% | 2022 | 41% |
| 1991 | 43.1% | 2007 | 40.3% | 2023 | 41.6% |
| 1992 | 43.3% | 2008 | 39% | 2024 | 42.2% |
| 1993 | 42.5% | 2009 | 39.5% | 2025 | 42.2% |
| 1994 | 42.1% | 2010 | 38.3% | 2026 | 41.9% |
| 1995 | 42.2% | 2011 | 38.3% | | |
데이터 표
| 1980 | 1,191억 | 1996 | 3,681억 | 2012 | 7,017억 |
| 1981 | 1,434억 | 1997 | 3,945억 | 2013 | 7,317억 |
| 1982 | 1,533억 | 1998 | 4,096억 | 2014 | 7,689억 |
| 1983 | 1,642억 | 1999 | 4,377억 | 2015 | 7,953억 |
| 1984 | 1,793억 | 2000 | 4,778억 | 2016 | 8,163억 |
| 1985 | 1,936억 | 2001 | 4,765억 | 2017 | 8,636억 |
| 1986 | 2,079억 | 2002 | 4,794억 | 2018 | 9,171억 |
| 1987 | 2,279억 | 2003 | 5,038억 | 2019 | 9,387억 |
| 1988 | 2,523억 | 2004 | 5,330억 | 2020 | 9,196억 |
| 1989 | 2,722억 | 2005 | 5,697억 | 2021 | 1.08조 |
| 1990 | 2,934억 | 2006 | 6,060억 | 2022 | 1.18조 |
| 1991 | 3,023억 | 2007 | 6,364억 | 2023 | 1.23조 |
| 1992 | 3,111억 | 2008 | 6,456억 | 2024 | 1.31조 |
| 1993 | 3,178억 | 2009 | 6,213억 | 2025 | 1.37조 |
| 1994 | 3,332억 | 2010 | 6,385억 | 2026 | 1.43조 |
| 1995 | 3,513억 | 2011 | 6,789억 | | |
데이터 표
| 1980 | 40.9% | 1996 | 45.9% | 2012 | 40.9% |
| 1981 | 41.8% | 1997 | 43.5% | 2013 | 40% |
| 1982 | 46.4% | 1998 | 43.4% | 2014 | 38.4% |
| 1983 | 47% | 1999 | 41.8% | 2015 | 40% |
| 1984 | 46.8% | 2000 | 40.6% | 2016 | 40.8% |
| 1985 | 47.5% | 2001 | 41.1% | 2017 | 40.5% |
| 1986 | 46.8% | 2002 | 40.4% | 2018 | 40.7% |
| 1987 | 45.4% | 2003 | 40.3% | 2019 | 40.6% |
| 1988 | 44.8% | 2004 | 39.1% | 2020 | 52.4% |
| 1989 | 45.3% | 2005 | 38.5% | 2021 | 45.5% |
| 1990 | 48.1% | 2006 | 38.7% | 2022 | 40.4% |
| 1991 | 51.4% | 2007 | 38.5% | 2023 | 41.8% |
| 1992 | 52.5% | 2008 | 38.8% | 2024 | 44.3% |
| 1993 | 51.5% | 2009 | 43.4% | 2025 | 44% |
| 1994 | 49% | 2010 | 43.1% | 2026 | 44.6% |
| 1995 | 47.7% | 2011 | 41.6% | | |
데이터 표
| 1980 | 1,322억 | 1996 | 3,944억 | 2012 | 7,478억 |
| 1981 | 1,541억 | 1997 | 3,942억 | 2013 | 7,602억 |
| 1982 | 1,801억 | 1998 | 4,083억 | 2014 | 7,655억 |
| 1983 | 1,979억 | 1999 | 4,210억 | 2015 | 7,965억 |
| 1984 | 2,160억 | 2000 | 4,486억 | 2016 | 8,255억 |
| 1985 | 2,374억 | 2001 | 4,704억 | 2017 | 8,660억 |
| 1986 | 2,465억 | 2002 | 4,822억 | 2018 | 9,091억 |
| 1987 | 2,609억 | 2003 | 5,054억 | 2019 | 9,391억 |
| 1988 | 2,806억 | 2004 | 5,227억 | 2020 | 1.16조 |
| 1989 | 3,039억 | 2005 | 5,476억 | 2021 | 1.15조 |
| 1990 | 3,345억 | 2006 | 5,786억 | 2022 | 1.16조 |
| 1991 | 3,610억 | 2007 | 6,077억 | 2023 | 1.24조 |
| 1992 | 3,772억 | 2008 | 6,425억 | 2024 | 1.38조 |
| 1993 | 3,846억 | 2009 | 6,823억 | 2025 | 1.43조 |
| 1994 | 3,882억 | 2010 | 7,175억 | 2026 | 1.52조 |
| 1995 | 3,970억 | 2011 | 7,376억 | | |