Show data table
| 1961 | 3.16M | 1975 | 23.1M | 1989 | 8.56M |
| 1962 | 3.7M | 1976 | 26.3M | 2013 | 26M |
| 1963 | 4.48M | 1977 | 31.7M | 2014 | 60.3M |
| 1964 | 5.42M | 1978 | 81.4M | 2015 | 46.6M |
| 1965 | 5.17M | 1979 | 87.7M | 2016 | 47.7M |
| 1966 | 6.5M | 1980 | 95.5M | 2017 | 61.8M |
| 1967 | 7.53M | 1981 | 134M | 2018 | 76.6M |
| 1968 | 8.34M | 1982 | 83.9M | 2019 | 71.7M |
| 1969 | 9M | 1983 | 83.9M | 2020 | 98.2M |
| 1970 | 11.2M | 1984 | 89.2M | 2021 | 111M |
| 1971 | 11.4M | 1985 | 44.3M | 2022 | 119M |
| 1972 | 13.2M | 1986 | 34.9M | 2023 | 139M |
| 1973 | 16.1M | 1987 | 28.5M | 2024 | 202M |
| 1974 | 21.4M | 1988 | 49.5M | 2025 | 199M |
Show data table
| 1961 | 0.2% | 1975 | 0.5% | 1989 | 1.5% |
| 1962 | 0.3% | 1976 | 0.5% | 2013 | 0.4% |
| 1963 | 0.3% | 1977 | 0.5% | 2014 | 0.9% |
| 1964 | 0.3% | 1978 | 1% | 2015 | 0.7% |
| 1965 | 0.3% | 1979 | 1% | 2016 | 0.6% |
| 1966 | 0.4% | 1980 | 0.5% | 2017 | 0.7% |
| 1967 | 0.4% | 1981 | 0.6% | 2018 | 1% |
| 1968 | 0.4% | 1982 | 0.3% | 2019 | 0.8% |
| 1969 | 0.4% | 1983 | 0.2% | 2020 | 1.1% |
| 1970 | 0.5% | 1984 | 0.1% | 2021 | 1.2% |
| 1971 | 0.5% | 1985 | 0.1% | 2022 | 1.2% |
| 1972 | 0.5% | 1986 | 28.9% | 2023 | 1.3% |
| 1973 | 0.5% | 1987 | 17% | 2024 | 1.7% |
| 1974 | 0.7% | 1988 | 17.4% | 2025 | 1.5% |