| 年份 | 意大利 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.112009 |
| 2020 | 0.0559705 |
| 2019 | 0.0824926 |
| 2018 | 0.0992013 |
| 2017 | 0.0639986 |
| 2016 | 0.0473052 |
| 2015 | 0.0819093 |
| 2014 | 0.138452 |
| 2013 | 0.155477 |
| 2012 | 0.169646 |
| 2011 | 0.156006 |
| 2010 | 0.107793 |
| 2009 | 0.0907628 |
| 2008 | 0.151795 |
| 2007 | 0.116805 |
| 2006 | 0.122654 |
| 2005 | 0.101635 |
| 2004 | 0.0777435 |
| 2003 | 0.0826116 |
| 2002 | 0.0896299 |
| 2001 | 0.102721 |
| 2000 | 0.0913316 |
| 1999 | 0.0382882 |
| 1998 | 0.0237534 |
| 1997 | 0.0813185 |
| 1996 | 0.0801352 |
| 1995 | 0.079338 |
| 1994 | 0.0577852 |
| 1993 | 0.0604194 |
| 1992 | 0.0364574 |
| 1991 | 0.0435647 |
| 1990 | 0.0799153 |
| 1989 | 0.0857724 |
| 1988 | 0.0725641 |
| 1987 | 0.0691519 |
| 1986 | 0.08465 |
| 1985 | 0.143874 |
| 1984 | 0.146211 |
| 1983 | 0.145852 |
| 1982 | 0.108458 |
| 1981 | 0.184637 |
| 1980 | 0.220933 |
| 1979 | 0.197277 |
| 1978 | 0.133548 |
| 1977 | 0.152124 |
| 1976 | 0.179278 |
| 1975 | 0.159467 |
| 1974 | 0.165168 |
| 1973 | 0.0956514 |
| 1972 | 0.0847074 |
| 1971 | 0.0756793 |
| 1970 | 0.0840689 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |