Show data table
| 1976 | 2.29M | 1993 | 22.1M | 2010 | 70.7M |
| 1977 | 2.78M | 1994 | 25.9M | 2011 | 58.2M |
| 1978 | 4.01M | 1995 | 34.4M | 2012 | 53.2M |
| 1979 | 5.37M | 1996 | 28.3M | 2013 | 47.9M |
| 1980 | 11.6M | 1997 | 28.7M | 2014 | 47.7M |
| 1981 | 12.4M | 1998 | 27.8M | 2015 | 44M |
| 1982 | 15M | 1999 | 34.1M | 2016 | 41.5M |
| 1983 | 14.1M | 2000 | 30.6M | 2017 | 52.6M |
| 1984 | 12.3M | 2001 | 23.4M | 2018 | 51.1M |
| 1985 | 10.7M | 2002 | 19.6M | 2019 | 44.8M |
| 1986 | 13.4M | 2003 | 27.4M | 2020 | 38.6M |
| 1987 | 18.1M | 2004 | 31.4M | 2021 | 37M |
| 1988 | 17M | 2005 | 33.6M | 2022 | 34.7M |
| 1989 | 22.6M | 2006 | 35.2M | 2023 | 34.4M |
| 1990 | 24.2M | 2007 | 39.8M | 2024 | 36.7M |
| 1991 | 22.3M | 2008 | 27.4M | 2025 | 39.9M |
| 1992 | 24.2M | 2009 | 47.4M | | |
Show data table
| 1976 | 1.6% | 1993 | 2.5% | 2010 | 3.2% |
| 1977 | 1.4% | 1994 | 2.7% | 2011 | 2.3% |
| 1978 | 1.5% | 1995 | 3.2% | 2012 | 2.1% |
| 1979 | 1.9% | 1996 | 2.8% | 2013 | 2% |
| 1980 | 3.2% | 1997 | 2.7% | 2014 | 2% |
| 1981 | 3.3% | 1998 | 2.9% | 2015 | 1.9% |
| 1982 | 4.4% | 1999 | 3.6% | 2016 | 2% |
| 1983 | 4% | 2000 | 3.3% | 2017 | 2.3% |
| 1984 | 4% | 2001 | 2.7% | 2018 | 2% |
| 1985 | 4.3% | 2002 | 2.5% | 2019 | 1.9% |
| 1986 | 4.8% | 2003 | 2.4% | 2020 | 1.9% |
| 1987 | 4.2% | 2004 | 2.1% | 2021 | 1.5% |
| 1988 | 3.4% | 2005 | 2% | 2022 | 1.5% |
| 1989 | 4.3% | 2006 | 2.1% | 2023 | 1.6% |
| 1990 | 3.6% | 2007 | 2.4% | 2024 | 1.6% |
| 1991 | 2.9% | 2008 | 1.5% | 2025 | 1.6% |
| 1992 | 2.7% | 2009 | 2.7% | | |