데이터 표
| 1980 | 10.9% | 1996 | 14.9% | 2012 | 15.5% |
| 1981 | 12% | 1997 | 16.2% | 2013 | 15.8% |
| 1982 | 12.8% | 1998 | 17.5% | 2014 | 14.9% |
| 1983 | 13.7% | 1999 | 18.3% | 2015 | 15.4% |
| 1984 | 15.1% | 2000 | 16.7% | 2016 | 15.6% |
| 1985 | 15% | 2001 | 18.7% | 2017 | 14.7% |
| 1986 | 15.9% | 2002 | 19.1% | 2018 | 13.1% |
| 1987 | 14.8% | 2003 | 21.4% | 2019 | 12.8% |
| 1988 | 18.1% | 2004 | 20.5% | 2020 | 11.7% |
| 1989 | 19.7% | 2005 | 18.8% | 2021 | 11% |
| 1990 | 14% | 2006 | 18.3% | 2022 | 8.5% |
| 1991 | 11.3% | 2007 | 17% | 2023 | 8.2% |
| 1992 | 9.3% | 2008 | 15.9% | 2024 | 7.5% |
| 1993 | 9.7% | 2009 | 16.2% | 2025 | 10.9% |
| 1994 | 12.2% | 2010 | 17.2% | 2026 | 11.3% |
| 1995 | 14.6% | 2011 | 16.6% | | |
데이터 표
| 1980 | 16.2억 | 1996 | 80.6억 | 2012 | 1,157억 |
| 1981 | 18.3억 | 1997 | 90.3억 | 2013 | 1,372억 |
| 1982 | 20.5억 | 1998 | 93.7억 | 2014 | 1,581억 |
| 1983 | 24.3억 | 1999 | 105억 | 2015 | 1,996억 |
| 1984 | 25.5억 | 2000 | 112억 | 2016 | 2,448억 |
| 1985 | 29.6억 | 2001 | 128억 | 2017 | 2,702억 |
| 1986 | 32.5억 | 2002 | 128억 | 2018 | 2,876억 |
| 1987 | 32.5억 | 2003 | 159억 | 2019 | 3,449억 |
| 1988 | 41억 | 2004 | 179억 | 2020 | 3,950억 |
| 1989 | 47억 | 2005 | 201억 | 2021 | 4,789억 |
| 1990 | 35.4억 | 2006 | 243억 | 2022 | 5,257억 |
| 1991 | 31.7억 | 2007 | 294억 | 2023 | 7,171억 |
| 1992 | 27.5억 | 2008 | 397억 | 2024 | 8,872억 |
| 1993 | 36.6억 | 2009 | 546억 | 2025 | 1.64조 |
| 1994 | 49.3억 | 2010 | 662억 | 2026 | 2.19조 |
| 1995 | 70.5억 | 2011 | 856억 | | |
데이터 표
| 1980 | 13.5% | 1996 | 18.8% | 2012 | 16.6% |
| 1981 | 14.2% | 1997 | 17.9% | 2013 | 17.8% |
| 1982 | 16.4% | 1998 | 21.1% | 2014 | 17.5% |
| 1983 | 21.3% | 1999 | 26.8% | 2015 | 17.3% |
| 1984 | 18.8% | 2000 | 25.6% | 2016 | 17.9% |
| 1985 | 19.7% | 2001 | 22.4% | 2017 | 18% |
| 1986 | 19.8% | 2002 | 24.9% | 2018 | 16.1% |
| 1987 | 18.4% | 2003 | 27% | 2019 | 15.4% |
| 1988 | 21.6% | 2004 | 23.1% | 2020 | 14.5% |
| 1989 | 24% | 2005 | 22.9% | 2021 | 13.8% |
| 1990 | 20.9% | 2006 | 22.1% | 2022 | 12.7% |
| 1991 | 17.3% | 2007 | 20.5% | 2023 | 10.8% |
| 1992 | 14.2% | 2008 | 18.8% | 2024 | 9.5% |
| 1993 | 13.8% | 2009 | 17.1% | 2025 | 12% |
| 1994 | 17.6% | 2010 | 18.5% | 2026 | 13.1% |
| 1995 | 17.4% | 2011 | 18.2% | | |
데이터 표
| 1980 | 20억 | 1996 | 102억 | 2012 | 1,244억 |
| 1981 | 21.6억 | 1997 | 100억 | 2013 | 1,539억 |
| 1982 | 26.3억 | 1998 | 113억 | 2014 | 1,855억 |
| 1983 | 37.9억 | 1999 | 155억 | 2015 | 2,249억 |
| 1984 | 31.7억 | 2000 | 172억 | 2016 | 2,809억 |
| 1985 | 38.8억 | 2001 | 154억 | 2017 | 3,297억 |
| 1986 | 40.7억 | 2002 | 167억 | 2018 | 3,542억 |
| 1987 | 40.2억 | 2003 | 200억 | 2019 | 4,131억 |
| 1988 | 48.9억 | 2004 | 202억 | 2020 | 4,882억 |
| 1989 | 57.3억 | 2005 | 246억 | 2021 | 5,990억 |
| 1990 | 52.8억 | 2006 | 293억 | 2022 | 7,818억 |
| 1991 | 48.5억 | 2007 | 356억 | 2023 | 9,439억 |
| 1992 | 42.1억 | 2008 | 469억 | 2024 | 1.12조 |
| 1993 | 52.2억 | 2009 | 578억 | 2025 | 1.82조 |
| 1994 | 70.9억 | 2010 | 713억 | 2026 | 2.53조 |
| 1995 | 83.7억 | 2011 | 939억 | | |