| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | 2.78077 |
| 2017 | 2.72207 |
| 2016 | 2.77961 |
| 2015 | 1.82247 |
| 2014 | 2.09451 |
| 2013 | 2.55778 |
| 2012 | 2.80575 |
| 2011 | 3.08475 |
| 2010 | 3.28891 |
| 2009 | 3.3772 |
| 2008 | 3.5264 |
| 2007 | 3.47536 |
| 2006 | 3.4569 |
| 2005 | 3.89693 |
| 2004 | 4.43291 |
| 2003 | 5.14534 |
| 2002 | 5.55037 |
| 2001 | 5.60037 |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | 3.28244 |
| 1995 | 3.68847 |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | - |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | 7.37115 |
| 1984 | 7.82932 |
| 1983 | 8.03452 |
| 1982 | 8.46585 |
| 1981 | 9.18903 |
| 1980 | 10.2894 |
| 1979 | 18.1296 |
| 1978 | 20.8018 |
| 1977 | 22.331 |
| 1976 | 23.4017 |
| 1975 | 23.5244 |
| 1974 | 23.9332 |
| 1973 | 24.7341 |
| 1972 | 24.7804 |
| 1971 | 25.74 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |