Show data table
| 1962 | 8.42M | 1983 | 34.4M | 2003 | 43.4M |
| 1963 | 1.01M | 1984 | 29.9M | 2004 | 44.9M |
| 1964 | 1.16M | 1985 | 32.2M | 2005 | 49.6M |
| 1965 | 2.15M | 1986 | 34.6M | 2006 | 44.7M |
| 1966 | 2.29M | 1987 | 30.8M | 2007 | 46.3M |
| 1967 | 2.38M | 1988 | 34.3M | 2008 | 43.9M |
| 1968 | 2.59M | 1989 | 37.9M | 2012 | 59M |
| 1969 | 3.34M | 1990 | 39.6M | 2013 | 60.9M |
| 1971 | 2.63M | 1991 | 42.8M | 2014 | 62.2M |
| 1972 | 3.6M | 1992 | 39M | 2015 | 66.2M |
| 1973 | 5.92M | 1993 | 36.3M | 2016 | 66.5M |
| 1974 | 7.68M | 1994 | 41.9M | 2017 | 63.9M |
| 1975 | 8.53M | 1995 | 42.1M | 2018 | 65.4M |
| 1976 | 9.97M | 1996 | 50.9M | 2019 | 84.7M |
| 1977 | 14M | 1997 | 61.9M | 2020 | 67.5M |
| 1978 | 17M | 1998 | 58.7M | 2021 | 68.4M |
| 1979 | 20M | 1999 | 50.6M | 2022 | 101M |
| 1980 | 27.8M | 2000 | 42.3M | 2023 | 145M |
| 1981 | 30M | 2001 | 53.2M | 2024 | 172M |
| 1982 | 36.7M | 2002 | 44.9M | 2025 | 227M |
Show data table
| 1962 | 3.9% | 1983 | 3.1% | 2003 | 5.5% |
| 1963 | 0.4% | 1984 | 3% | 2004 | 4.9% |
| 1964 | 0.4% | 1985 | 2.8% | 2005 | 4.4% |
| 1965 | 1.4% | 1986 | 2.8% | 2006 | 3.5% |
| 1966 | 1.4% | 1987 | 2.6% | 2007 | 3.4% |
| 1967 | 1.3% | 1988 | 3.1% | 2008 | 2.7% |
| 1968 | 1.4% | 1989 | 3.3% | 2012 | 2.5% |
| 1969 | 1.8% | 1990 | 3.4% | 2013 | 2.5% |
| 1971 | 1% | 1991 | 3.8% | 2014 | 2.3% |
| 1972 | 1.5% | 1992 | 3.6% | 2015 | 2.1% |
| 1973 | 1.9% | 1993 | 3.7% | 2016 | 2.2% |
| 1974 | 2.2% | 1994 | 3.9% | 2017 | 2% |
| 1975 | 2.1% | 1995 | 4.2% | 2018 | 2.1% |
| 1976 | 2.2% | 1996 | 5.9% | 2019 | 2.8% |
| 1977 | 2.5% | 1997 | 6.4% | 2020 | 2.2% |
| 1978 | 2.8% | 1998 | 6.6% | 2021 | 2% |
| 1979 | 2.6% | 1999 | 6.3% | 2022 | 2.6% |
| 1980 | 2.9% | 2000 | 4.9% | 2023 | 3.4% |
| 1981 | 3% | 2001 | 6.1% | 2024 | 3.6% |
| 1982 | 3.5% | 2002 | 5.4% | 2025 | 3.2% |