데이터 표
| 1980 | 20.5% | 1996 | 22.8% | 2012 | 24.5% |
| 1981 | 22.2% | 1997 | 23.6% | 2013 | 23.7% |
| 1982 | 23.8% | 1998 | 23.6% | 2014 | 27.6% |
| 1983 | 22.8% | 1999 | 23.5% | 2015 | 25.6% |
| 1984 | 25.6% | 2000 | 23% | 2016 | 27.1% |
| 1985 | 25.6% | 2001 | 22.8% | 2017 | 25.1% |
| 1986 | 24.6% | 2002 | 23.7% | 2018 | 24.6% |
| 1987 | 24.8% | 2003 | 23.5% | 2019 | 25.7% |
| 1988 | 25.4% | 2004 | 22.1% | 2020 | 27% |
| 1989 | 25.7% | 2005 | 22.4% | 2021 | 30% |
| 1990 | 25.4% | 2006 | 23% | 2022 | 27.3% |
| 1991 | 25.8% | 2007 | 24.1% | 2023 | 27.2% |
| 1992 | 22.6% | 2008 | 27% | 2024 | 27.9% |
| 1993 | 21.3% | 2009 | 28.2% | 2025 | 28.7% |
| 1994 | 23.1% | 2010 | 27.4% | 2026 | 28.5% |
| 1995 | 21.4% | 2011 | 25.9% | | |
데이터 표
| 1980 | 4,200만 | 1996 | 2.17억 | 2012 | 4.84억 |
| 1981 | 5,800만 | 1997 | 2.36억 | 2013 | 4.89억 |
| 1982 | 7,000만 | 1998 | 2.55억 | 2014 | 5.75억 |
| 1983 | 7,300만 | 1999 | 2.65억 | 2015 | 5.43억 |
| 1984 | 9,200만 | 2000 | 2.65억 | 2016 | 5.96억 |
| 1985 | 1.01억 | 2001 | 2.84억 | 2017 | 5.72억 |
| 1986 | 1.09억 | 2002 | 3.12억 | 2018 | 5.88억 |
| 1987 | 1.22억 | 2003 | 3.23억 | 2019 | 6.31억 |
| 1988 | 1.46억 | 2004 | 3.29억 | 2020 | 6.29억 |
| 1989 | 1.56억 | 2005 | 3.51억 | 2021 | 7.19억 |
| 1990 | 1.73억 | 2006 | 3.99억 | 2022 | 7.14억 |
| 1991 | 1.86억 | 2007 | 4.63억 | 2023 | 7.7억 |
| 1992 | 1.79억 | 2008 | 5.35억 | 2024 | 8.48억 |
| 1993 | 1.73억 | 2009 | 5.43억 | 2025 | 9.12억 |
| 1994 | 1.89억 | 2010 | 5.32억 | 2026 | 9.5억 |
| 1995 | 1.93억 | 2011 | 4.99억 | | |
데이터 표
| 1980 | 24.1% | 1996 | 21.2% | 2012 | 26.3% |
| 1981 | 24.9% | 1997 | 26.4% | 2013 | 29.5% |
| 1982 | 23.5% | 1998 | 25.4% | 2014 | 30.4% |
| 1983 | 24.7% | 1999 | 25.5% | 2015 | 27.6% |
| 1984 | 23.1% | 2000 | 23.8% | 2016 | 27.1% |
| 1985 | 21.4% | 2001 | 24.4% | 2017 | 26.6% |
| 1986 | 22.3% | 2002 | 25.7% | 2018 | 26.3% |
| 1987 | 23.7% | 2003 | 26% | 2019 | 29.1% |
| 1988 | 24.8% | 2004 | 24.9% | 2020 | 32.9% |
| 1989 | 27.6% | 2005 | 26.7% | 2021 | 37.2% |
| 1990 | 23.7% | 2006 | 26.1% | 2022 | 36.6% |
| 1991 | 26.2% | 2007 | 27.1% | 2023 | 39.7% |
| 1992 | 25.9% | 2008 | 28.3% | 2024 | 43.9% |
| 1993 | 22.8% | 2009 | 31% | 2025 | 41% |
| 1994 | 23% | 2010 | 31.1% | 2026 | 40.6% |
| 1995 | 20.3% | 2011 | 29.4% | | |
데이터 표
| 1980 | 5,000만 | 1996 | 2.02억 | 2012 | 5.19억 |
| 1981 | 6,500만 | 1997 | 2.64억 | 2013 | 6.09억 |
| 1982 | 7,000만 | 1998 | 2.74억 | 2014 | 6.33억 |
| 1983 | 7,900만 | 1999 | 2.87억 | 2015 | 5.86억 |
| 1984 | 8,300만 | 2000 | 2.75억 | 2016 | 5.95억 |
| 1985 | 8,400만 | 2001 | 3.04억 | 2017 | 6.07억 |
| 1986 | 9,900만 | 2002 | 3.39억 | 2018 | 6.28억 |
| 1987 | 1.17억 | 2003 | 3.57억 | 2019 | 7.16억 |
| 1988 | 1.42억 | 2004 | 3.69억 | 2020 | 7.67억 |
| 1989 | 1.68억 | 2005 | 4.18억 | 2021 | 8.91억 |
| 1990 | 1.62억 | 2006 | 4.53억 | 2022 | 9.59억 |
| 1991 | 1.89억 | 2007 | 5.23억 | 2023 | 11.2억 |
| 1992 | 2.05억 | 2008 | 5.6억 | 2024 | 13.4억 |
| 1993 | 1.86억 | 2009 | 5.98억 | 2025 | 13억 |
| 1994 | 1.88억 | 2010 | 6.04억 | 2026 | 13.5억 |
| 1995 | 1.83억 | 2011 | 5.66억 | | |