데이터 표
| 1980 | 47.6% | 1996 | 52.1% | 2012 | 52.7% |
| 1981 | 48.2% | 1997 | 51.9% | 2013 | 53.7% |
| 1982 | 49.2% | 1998 | 51.6% | 2014 | 53.8% |
| 1983 | 50% | 1999 | 52.1% | 2015 | 53.7% |
| 1984 | 50.8% | 2000 | 51.3% | 2016 | 53.6% |
| 1985 | 51.2% | 2001 | 51.4% | 2017 | 54.3% |
| 1986 | 50.2% | 2002 | 50.7% | 2018 | 54% |
| 1987 | 50.8% | 2003 | 50.3% | 2019 | 53% |
| 1988 | 49.4% | 2004 | 50.4% | 2020 | 52.8% |
| 1989 | 49.1% | 2005 | 50.8% | 2021 | 52.9% |
| 1990 | 49.2% | 2006 | 51.1% | 2022 | 53.7% |
| 1991 | 49.8% | 2007 | 50.6% | 2023 | 51.4% |
| 1992 | 49.4% | 2008 | 50.8% | 2024 | 51.5% |
| 1993 | 50.1% | 2009 | 50.6% | 2025 | 52.4% |
| 1994 | 50.4% | 2010 | 50.6% | 2026 | 52.4% |
| 1995 | 50.9% | 2011 | 51.7% | | |
데이터 표
| 1980 | 2,130억 | 1996 | 6,499억 | 2012 | 1.1조 |
| 1981 | 2,434억 | 1997 | 6,688억 | 2013 | 1.14조 |
| 1982 | 2,848억 | 1998 | 6,945억 | 2014 | 1.16조 |
| 1983 | 3,215억 | 1999 | 7,270억 | 2015 | 1.18조 |
| 1984 | 3,554억 | 2000 | 7,560억 | 2016 | 1.2조 |
| 1985 | 3,836억 | 2001 | 7,865억 | 2017 | 1.24조 |
| 1986 | 4,053억 | 2002 | 8,010억 | 2018 | 1.27조 |
| 1987 | 4,309억 | 2003 | 8,155억 | 2019 | 1.29조 |
| 1988 | 4,539억 | 2004 | 8,556억 | 2020 | 1.22조 |
| 1989 | 4,854억 | 2005 | 8,943억 | 2021 | 1.33조 |
| 1990 | 5,132억 | 2006 | 9,432억 | 2022 | 1.42조 |
| 1991 | 5,396억 | 2007 | 9,814억 | 2023 | 1.45조 |
| 1992 | 5,536억 | 2008 | 1.01조 | 2024 | 1.5조 |
| 1993 | 5,690억 | 2009 | 9,798억 | 2025 | 1.56조 |
| 1994 | 5,915억 | 2010 | 1.01조 | 2026 | 1.6조 |
| 1995 | 6,183억 | 2011 | 1.07조 | | |
데이터 표
| 1980 | 46.9% | 1996 | 56% | 2012 | 57.9% |
| 1981 | 49.5% | 1997 | 55.6% | 2013 | 58.6% |
| 1982 | 50.8% | 1998 | 54% | 2014 | 58.4% |
| 1983 | 52.6% | 1999 | 53.7% | 2015 | 57.6% |
| 1984 | 53.6% | 2000 | 52.6% | 2016 | 57.4% |
| 1985 | 54.2% | 2001 | 52.8% | 2017 | 57.7% |
| 1986 | 53.4% | 2002 | 53.9% | 2018 | 56.4% |
| 1987 | 52.8% | 2003 | 54.4% | 2019 | 55.3% |
| 1988 | 52% | 2004 | 54% | 2020 | 61.7% |
| 1989 | 50.9% | 2005 | 54.3% | 2021 | 59.5% |
| 1990 | 51.6% | 2006 | 53.7% | 2022 | 58.4% |
| 1991 | 52.7% | 2007 | 53.6% | 2023 | 56.8% |
| 1992 | 54% | 2008 | 54.3% | 2024 | 57.3% |
| 1993 | 56.5% | 2009 | 58% | 2025 | 57.5% |
| 1994 | 55.9% | 2010 | 57.7% | 2026 | 57.4% |
| 1995 | 56% | 2011 | 57% | | |
데이터 표
| 1980 | 2,096억 | 1996 | 6,985억 | 2012 | 1.21조 |
| 1981 | 2,497억 | 1997 | 7,166억 | 2013 | 1.24조 |
| 1982 | 2,944억 | 1998 | 7,267억 | 2014 | 1.26조 |
| 1983 | 3,382억 | 1999 | 7,486억 | 2015 | 1.27조 |
| 1984 | 3,748억 | 2000 | 7,754억 | 2016 | 1.28조 |
| 1985 | 4,061억 | 2001 | 8,082억 | 2017 | 1.32조 |
| 1986 | 4,314억 | 2002 | 8,511억 | 2018 | 1.33조 |
| 1987 | 4,481억 | 2003 | 8,819억 | 2019 | 1.35조 |
| 1988 | 4,775억 | 2004 | 9,159억 | 2020 | 1.43조 |
| 1989 | 5,032억 | 2005 | 9,561억 | 2021 | 1.49조 |
| 1990 | 5,388억 | 2006 | 9,922억 | 2022 | 1.55조 |
| 1991 | 5,709억 | 2007 | 1.04조 | 2023 | 1.61조 |
| 1992 | 6,057억 | 2008 | 1.08조 | 2024 | 1.67조 |
| 1993 | 6,416억 | 2009 | 1.12조 | 2025 | 1.71조 |
| 1994 | 6,555억 | 2010 | 1.15조 | 2026 | 1.75조 |
| 1995 | 6,803억 | 2011 | 1.18조 | | |