데이터 표
| 1980 | 47.3% | 1996 | 49% | 2012 | 51.9% |
| 1981 | 47.9% | 1997 | 49.5% | 2013 | 52.7% |
| 1982 | 49.2% | 1998 | 49.9% | 2014 | 52.2% |
| 1983 | 49.6% | 1999 | 49.8% | 2015 | 51.4% |
| 1984 | 50.2% | 2000 | 49.3% | 2016 | 50.9% |
| 1985 | 50.3% | 2001 | 49.6% | 2017 | 51.5% |
| 1986 | 49.6% | 2002 | 49.9% | 2018 | 51.4% |
| 1987 | 49.8% | 2003 | 49.2% | 2019 | 49.7% |
| 1988 | 48.5% | 2004 | 49.1% | 2020 | 49.4% |
| 1989 | 46.6% | 2005 | 49.1% | 2021 | 49.5% |
| 1990 | 47.4% | 2006 | 49% | 2022 | 48.9% |
| 1991 | 48% | 2007 | 48.6% | 2023 | 48.8% |
| 1992 | 47.5% | 2008 | 49.7% | 2024 | 49.7% |
| 1993 | 49.3% | 2009 | 49.1% | 2025 | 49.7% |
| 1994 | 49.4% | 2010 | 49.8% | 2026 | 49.8% |
| 1995 | 48.1% | 2011 | 50.6% | | |
데이터 표
| 1980 | 423억 | 1996 | 1,051억 | 2012 | 2,013억 |
| 1981 | 449억 | 1997 | 1,108억 | 2013 | 2,081억 |
| 1982 | 499억 | 1998 | 1,162억 | 2014 | 2,116억 |
| 1983 | 533억 | 1999 | 1,208억 | 2015 | 2,136억 |
| 1984 | 583억 | 2000 | 1,264억 | 2016 | 2,183억 |
| 1985 | 621억 | 2001 | 1,311억 | 2017 | 2,283억 |
| 1986 | 640억 | 2002 | 1,362억 | 2018 | 2,362억 |
| 1987 | 670억 | 2003 | 1,383억 | 2019 | 2,383억 |
| 1988 | 697억 | 2004 | 1,457억 | 2020 | 2,292억 |
| 1989 | 726억 | 2005 | 1,524억 | 2021 | 2,507억 |
| 1990 | 783억 | 2006 | 1,594억 | 2022 | 2,745억 |
| 1991 | 831억 | 2007 | 1,671억 | 2023 | 2,939억 |
| 1992 | 864억 | 2008 | 1,747억 | 2024 | 3,082억 |
| 1993 | 925억 | 2009 | 1,707억 | 2025 | 3,192억 |
| 1994 | 975억 | 2010 | 1,808억 | 2026 | 3,281억 |
| 1995 | 1,013억 | 2011 | 1,916억 | | |
데이터 표
| 1980 | 57.1% | 1996 | 53.1% | 2012 | 56.2% |
| 1981 | 64% | 1997 | 51.6% | 2013 | 55.9% |
| 1982 | 62% | 1998 | 51% | 2014 | 55.4% |
| 1983 | 64.6% | 1999 | 50.5% | 2015 | 53.9% |
| 1984 | 61.4% | 2000 | 49.4% | 2016 | 53.4% |
| 1985 | 60.7% | 2001 | 49.4% | 2017 | 52.3% |
| 1986 | 59.9% | 2002 | 49.9% | 2018 | 52.5% |
| 1987 | 58% | 2003 | 51% | 2019 | 51.8% |
| 1988 | 56% | 2004 | 49.3% | 2020 | 58.5% |
| 1989 | 54.4% | 2005 | 51.9% | 2021 | 54.9% |
| 1990 | 54.4% | 2006 | 48.8% | 2022 | 52.5% |
| 1991 | 55.6% | 2007 | 48.6% | 2023 | 52.8% |
| 1992 | 55.9% | 2008 | 50.8% | 2024 | 54.1% |
| 1993 | 57.1% | 2009 | 54.5% | 2025 | 55% |
| 1994 | 54.7% | 2010 | 53.9% | 2026 | 54.9% |
| 1995 | 52.6% | 2011 | 55% | | |
데이터 표
| 1980 | 510억 | 1996 | 1,137억 | 2012 | 2,182억 |
| 1981 | 599억 | 1997 | 1,156억 | 2013 | 2,206억 |
| 1982 | 628억 | 1998 | 1,185억 | 2014 | 2,244억 |
| 1983 | 694억 | 1999 | 1,224억 | 2015 | 2,239억 |
| 1984 | 713억 | 2000 | 1,266억 | 2016 | 2,287억 |
| 1985 | 749억 | 2001 | 1,305억 | 2017 | 2,317억 |
| 1986 | 773억 | 2002 | 1,364억 | 2018 | 2,410억 |
| 1987 | 779억 | 2003 | 1,435억 | 2019 | 2,481억 |
| 1988 | 805억 | 2004 | 1,464억 | 2020 | 2,711억 |
| 1989 | 848억 | 2005 | 1,608억 | 2021 | 2,780억 |
| 1990 | 899억 | 2006 | 1,586억 | 2022 | 2,947억 |
| 1991 | 964억 | 2007 | 1,669억 | 2023 | 3,181억 |
| 1992 | 1,017억 | 2008 | 1,786억 | 2024 | 3,353억 |
| 1993 | 1,069억 | 2009 | 1,896억 | 2025 | 3,530억 |
| 1994 | 1,079억 | 2010 | 1,958억 | 2026 | 3,618억 |
| 1995 | 1,108억 | 2011 | 2,084억 | | |