| 年份 | 中国香港特别行政区 |
|---|---|
| 2023 | - |
| 2022 | 3.72912 |
| 2021 | 4.00031 |
| 2020 | 4.40562 |
| 2019 | 3.81018 |
| 2018 | 3.32624 |
| 2017 | 3.30989 |
| 2016 | 3.29269 |
| 2015 | 3.26212 |
| 2014 | 3.57255 |
| 2013 | 3.76032 |
| 2012 | 3.50961 |
| 2011 | 3.41822 |
| 2010 | 3.51003 |
| 2009 | 4.39213 |
| 2008 | 3.26063 |
| 2007 | 3.45455 |
| 2006 | 3.84279 |
| 2005 | 4.13463 |
| 2004 | 4.55896 |
| 2003 | 4.2853 |
| 2002 | 4.01554 |
| 2001 | 3.9037 |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | 2.72831 |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | 2.8282 |
| 1991 | - |
| 1990 | 2.46609 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | 2.55897 |
| 1984 | 2.58169 |
| 1983 | 2.5786 |
| 1982 | 1.66983 |
| 1981 | 2.27173 |
| 1980 | 2.19214 |
| 1979 | - |
| 1978 | 2.32255 |
| 1977 | 2.21924 |
| 1976 | 2.43336 |
| 1975 | 2.4492 |
| 1974 | 2.36029 |
| 1973 | 2.18337 |
| 1972 | 2.29561 |
| 1971 | 2.36815 |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |