데이터 표
| 1980 | 20.5% | 1996 | 23.5% | 2012 | 34% |
| 1981 | 18.6% | 1997 | 18.1% | 2013 | 45.4% |
| 1982 | 18.5% | 1998 | 17.3% | 2014 | 42% |
| 1983 | 16.3% | 1999 | 15.5% | 2015 | 42.3% |
| 1984 | 17.5% | 2000 | 13.3% | 2016 | 36.1% |
| 1985 | 18.1% | 2001 | 13.3% | 2017 | 38.1% |
| 1986 | 18.7% | 2002 | 10.4% | 2018 | 36.3% |
| 1987 | 20.2% | 2003 | 21.5% | 2019 | 34.1% |
| 1988 | 21.6% | 2004 | 26.9% | 2020 | 37.9% |
| 1989 | 24.3% | 2005 | 26.2% | 2021 | 35.1% |
| 1990 | 25.8% | 2006 | 28.7% | 2022 | 40.8% |
| 1991 | 33.4% | 2007 | 34.8% | 2023 | 40.1% |
| 1992 | 33.1% | 2008 | 26% | 2024 | 37.5% |
| 1993 | 30.1% | 2009 | 24.8% | 2025 | 37.4% |
| 1994 | 29.1% | 2010 | 28.2% | 2026 | 37.4% |
| 1995 | 23.5% | 2011 | 32.8% | | |
데이터 표
| 1980 | 3,700만 | 1996 | 5.08억 | 2012 | 29.6억 |
| 1981 | 3,700만 | 1997 | 4.2억 | 2013 | 42.6억 |
| 1982 | 4,100만 | 1998 | 4.53억 | 2014 | 41.3억 |
| 1983 | 4,000만 | 1999 | 4.33억 | 2015 | 43.8억 |
| 1984 | 4,800만 | 2000 | 3.36억 | 2016 | 39.5억 |
| 1985 | 5,300만 | 2001 | 3.4억 | 2017 | 44.2억 |
| 1986 | 5,700만 | 2002 | 2.88억 | 2018 | 46.6억 |
| 1987 | 7,400만 | 2003 | 6.73억 | 2019 | 45.1억 |
| 1988 | 9,400만 | 2004 | 9.43억 | 2020 | 47.9억 |
| 1989 | 1.14억 | 2005 | 10.9억 | 2021 | 43.9억 |
| 1990 | 1.66억 | 2006 | 13.5억 | 2022 | 48.8억 |
| 1991 | 2.44억 | 2007 | 18.5억 | 2023 | 50.5억 |
| 1992 | 3.09억 | 2008 | 15.7억 | 2024 | 50.2억 |
| 1993 | 3.42억 | 2009 | 16.1억 | 2025 | 53억 |
| 1994 | 4.58억 | 2010 | 20.5억 | 2026 | 57.1억 |
| 1995 | 4.46억 | 2011 | 26.7억 | | |
데이터 표
| 1980 | 17.6% | 1996 | 20.4% | 2012 | 29.4% |
| 1981 | 19.5% | 1997 | 16.3% | 2013 | 41.8% |
| 1982 | 17.9% | 1998 | 13.1% | 2014 | 39.8% |
| 1983 | 17% | 1999 | 15.8% | 2015 | 41.5% |
| 1984 | 23.3% | 2000 | 15.8% | 2016 | 39.6% |
| 1985 | 25.6% | 2001 | 15.3% | 2017 | 40.4% |
| 1986 | 28% | 2002 | 14.1% | 2018 | 34.8% |
| 1987 | 42% | 2003 | 12.6% | 2019 | 35.6% |
| 1988 | 35.7% | 2004 | 12.5% | 2020 | 40.4% |
| 1989 | 37.2% | 2005 | 14.7% | 2021 | 36.9% |
| 1990 | 25.4% | 2006 | 17.4% | 2022 | 43.5% |
| 1991 | 33.2% | 2007 | 21.1% | 2023 | 44.2% |
| 1992 | 29.6% | 2008 | 24.3% | 2024 | 39.6% |
| 1993 | 28.1% | 2009 | 22.7% | 2025 | 40.6% |
| 1994 | 25.5% | 2010 | 22.6% | 2026 | 40.8% |
| 1995 | 20.8% | 2011 | 26.7% | | |
데이터 표
| 1980 | 3,200만 | 1996 | 4.4억 | 2012 | 25.6억 |
| 1981 | 3,900만 | 1997 | 3.78억 | 2013 | 39.2억 |
| 1982 | 4,000만 | 1998 | 3.42억 | 2014 | 39.2억 |
| 1983 | 4,200만 | 1999 | 4.41억 | 2015 | 42.9억 |
| 1984 | 6,400만 | 2000 | 3.99억 | 2016 | 43.4억 |
| 1985 | 7,400만 | 2001 | 3.92억 | 2017 | 46.8억 |
| 1986 | 8,500만 | 2002 | 3.89억 | 2018 | 44.7억 |
| 1987 | 1.55억 | 2003 | 3.94억 | 2019 | 47.1억 |
| 1988 | 1.56억 | 2004 | 4.36억 | 2020 | 51억 |
| 1989 | 1.75억 | 2005 | 6.11억 | 2021 | 46.2억 |
| 1990 | 1.63억 | 2006 | 8.16억 | 2022 | 52.1억 |
| 1991 | 2.43억 | 2007 | 11.3억 | 2023 | 55.7억 |
| 1992 | 2.77억 | 2008 | 14.6억 | 2024 | 53억 |
| 1993 | 3.19억 | 2009 | 14.7억 | 2025 | 57.6억 |
| 1994 | 4억 | 2010 | 16.4억 | 2026 | 62.3억 |
| 1995 | 3.95억 | 2011 | 21.7억 | | |