| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | 14.3298 |
| 2021 | 12.6776 |
| 2020 | 12.7458 |
| 2019 | 10.8764 |
| 2018 | 9.92513 |
| 2017 | 9.83027 |
| 2016 | 9.95636 |
| 2015 | 9.64287 |
| 2014 | 9.47856 |
| 2013 | 9.28642 |
| 2012 | 9.09694 |
| 2011 | 8.71146 |
| 2010 | 8.85932 |
| 2009 | 9.19165 |
| 2008 | 8.6687 |
| 2007 | 8.41839 |
| 2006 | 8.76954 |
| 2005 | 9.24607 |
| 2004 | 10.3538 |
| 2003 | 10.9931 |
| 2002 | 10.6355 |
| 2001 | 10.2037 |
| 2000 | 9.36777 |
| 1999 | 9.61199 |
| 1998 | 9.02472 |
| 1997 | 8.04387 |
| 1996 | 8.14433 |
| 1995 | 8.02695 |
| 1994 | 7.54185 |
| 1993 | 7.47629 |
| 1992 | 7.62417 |
| 1991 | 7.12851 |
| 1990 | 6.83664 |
| 1989 | 6.32923 |
| 1988 | 6.11488 |
| 1987 | 6.28011 |
| 1986 | 6.97886 |
| 1985 | 7.00541 |
| 1984 | 6.78074 |
| 1983 | 7.39089 |
| 1982 | 7.23961 |
| 1981 | 6.82345 |
| 1980 | 5.62043 |
| 1979 | 5.50709 |
| 1978 | 5.69933 |
| 1977 | 5.57966 |
| 1976 | 5.44525 |
| 1975 | 5.99528 |
| 1974 | 5.82557 |
| 1973 | 5.19031 |
| 1972 | 5.296 |
| 1971 | 5.25468 |
| 1970 | 5.65654 |
| 1969 | 5.7725 |
| 1968 | 6.19972 |
| 1967 | 6.02262 |
| 1966 | 5.69948 |
| 1965 | 5.17451 |
| 1964 | 5.42564 |
| 1963 | 5.4474 |
| 1962 | 5.7327 |
| 1961 | 6.31791 |
| 1960 | 7.81918 |