| 年份 | 加拿大 |
|---|---|
| 2023 | - |
| 2022 | 1.94454 |
| 2021 | 0.686929 |
| 2020 | 1.17193 |
| 2019 | 1.52331 |
| 2018 | 1.48742 |
| 2017 | 1.261 |
| 2016 | 1.18279 |
| 2015 | 0.796808 |
| 2014 | 1.0546 |
| 2013 | 1.10711 |
| 2012 | 1.13636 |
| 2011 | 1.17495 |
| 2010 | 1.33327 |
| 2009 | 1.36489 |
| 2008 | 1.30903 |
| 2007 | 1.19902 |
| 2006 | 1.12385 |
| 2005 | 1.04062 |
| 2004 | 1.03051 |
| 2003 | 1.00021 |
| 2002 | 1.18513 |
| 2001 | 1.50321 |
| 2000 | 1.40423 |
| 1999 | 1.29312 |
| 1998 | 1.31888 |
| 1997 | 1.49158 |
| 1996 | 1.40001 |
| 1995 | 1.37135 |
| 1994 | 1.43427 |
| 1993 | 1.443 |
| 1992 | 1.53154 |
| 1991 | 1.29237 |
| 1990 | 1.53378 |
| 1989 | 1.82032 |
| 1988 | 1.32276 |
| 1987 | 1.34431 |
| 1986 | 1.18769 |
| 1985 | 1.12223 |
| 1984 | 1.15424 |
| 1983 | 1.20045 |
| 1982 | 1.40337 |
| 1981 | 1.29814 |
| 1980 | 1.34247 |
| 1979 | 1.04261 |
| 1978 | 1.04839 |
| 1977 | 1.22322 |
| 1976 | 1.17287 |
| 1975 | 1.30085 |
| 1974 | 1.23769 |
| 1973 | 1.06454 |
| 1972 | 1.00433 |
| 1971 | 3.52285 |
| 1970 | 2.05162 |
| 1969 | 2.02591 |
| 1968 | 2.29478 |
| 1967 | 2.49356 |
| 1966 | 2.88647 |
| 1965 | 2.89294 |
| 1964 | 3.00138 |
| 1963 | 3.00953 |
| 1962 | 3.03854 |
| 1961 | 2.87428 |
| 1960 | - |