| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | 30.3358 |
| 2021 | 28.7341 |
| 2020 | 27.1906 |
| 2019 | 25.7894 |
| 2018 | 24.5143 |
| 2017 | 23.3698 |
| 2016 | 22.2999 |
| 2015 | 21.2596 |
| 2014 | 20.2766 |
| 2013 | 19.4321 |
| 2012 | 18.7487 |
| 2011 | 18.2179 |
| 2010 | 17.8466 |
| 2009 | 17.5792 |
| 2008 | 17.3854 |
| 2007 | 17.2795 |
| 2006 | 17.1882 |
| 2005 | 17.0312 |
| 2004 | 16.8127 |
| 2003 | 16.5407 |
| 2002 | 16.2152 |
| 2001 | 15.867 |
| 2000 | 15.5603 |
| 1999 | 15.304 |
| 1998 | 15.0211 |
| 1997 | 14.7508 |
| 1996 | 14.4976 |
| 1995 | 14.105 |
| 1994 | 13.6744 |
| 1993 | 13.3247 |
| 1992 | 12.9864 |
| 1991 | 12.6329 |
| 1990 | 12.2718 |
| 1989 | 11.9656 |
| 1988 | 11.7086 |
| 1987 | 11.4328 |
| 1986 | 11.1328 |
| 1985 | 10.7914 |
| 1984 | 10.4633 |
| 1983 | 10.2123 |
| 1982 | 9.97584 |
| 1981 | 9.71379 |
| 1980 | 9.42809 |
| 1979 | 9.17102 |
| 1978 | 8.95964 |
| 1977 | 8.73519 |
| 1976 | 8.48062 |
| 1975 | 8.22671 |
| 1974 | 8.02097 |
| 1973 | 7.85769 |
| 1972 | 7.70864 |
| 1971 | 7.56391 |
| 1970 | 7.36673 |
| 1969 | 7.12301 |
| 1968 | 6.8831 |
| 1967 | 6.62561 |
| 1966 | 6.34645 |
| 1965 | 6.03389 |
| 1964 | 5.7326 |
| 1963 | 5.48878 |
| 1962 | 5.27115 |
| 1961 | 5.05447 |
| 1960 | 4.79496 |