| 年份 | 加拿大 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.0730211 |
| 2020 | 0.0442539 |
| 2019 | 0.0537365 |
| 2018 | 0.085387 |
| 2017 | 0.0890428 |
| 2016 | 0.0762147 |
| 2015 | 0.0677434 |
| 2014 | 0.0762774 |
| 2013 | 0.111211 |
| 2012 | 0.165451 |
| 2011 | 0.312902 |
| 2010 | 0.246578 |
| 2009 | 0.198211 |
| 2008 | 0.374151 |
| 2007 | 0.109097 |
| 2006 | 0.153707 |
| 2005 | 0.152156 |
| 2004 | 0.141082 |
| 2003 | 0.0703205 |
| 2002 | 0.0859208 |
| 2001 | 0.111915 |
| 2000 | 0.067838 |
| 1999 | 0.0686138 |
| 1998 | 0.116916 |
| 1997 | 0.154496 |
| 1996 | 0.171226 |
| 1995 | 0.164621 |
| 1994 | 0.0951297 |
| 1993 | 0.114566 |
| 1992 | 0.138835 |
| 1991 | 0.180998 |
| 1990 | 0.179973 |
| 1989 | 0.176471 |
| 1988 | 0.140038 |
| 1987 | 0.124808 |
| 1986 | 0.219081 |
| 1985 | 0.310806 |
| 1984 | 0.300919 |
| 1983 | 0.287064 |
| 1982 | 0.419235 |
| 1981 | 0.37663 |
| 1980 | 0.277264 |
| 1979 | 0.262087 |
| 1978 | 0.28755 |
| 1977 | 0.278502 |
| 1976 | 0.258039 |
| 1975 | 0.276727 |
| 1974 | 0.107996 |
| 1973 | 0.0650809 |
| 1972 | 0.0590342 |
| 1971 | 0.0566592 |
| 1970 | 0.0433348 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |