| 年份 | 意大利  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | - | 
| 2021 | 0.00996755 | 
| 2020 | 0.00989327 | 
| 2019 | 0.0125399 | 
| 2018 | 0.0109482 | 
| 2017 | 0.0102964 | 
| 2016 | 0.0116028 | 
| 2015 | 0.0119026 | 
| 2014 | 0.0128058 | 
| 2013 | 0.0115696 | 
| 2012 | 0.00999785 | 
| 2011 | 0.0104522 | 
| 2010 | 0.0134471 | 
| 2009 | 0.010967 | 
| 2008 | 0.0107612 | 
| 2007 | 0.00986822 | 
| 2006 | 0.00814373 | 
| 2005 | 0.00784843 | 
| 2004 | 0.00666155 | 
| 2003 | 0.00830382 | 
| 2002 | 0.00802011 | 
| 2001 | 0.00894834 | 
| 2000 | 0.0101438 | 
| 1999 | 0.00977553 | 
| 1998 | 0.0100385 | 
| 1997 | 0.0119949 | 
| 1996 | 0.0113381 | 
| 1995 | 0.0123705 | 
| 1994 | 0.0106587 | 
| 1993 | 0.0109404 | 
| 1992 | 0.00758563 | 
| 1991 | 0.00783184 | 
| 1990 | 0.0092256 | 
| 1989 | 0.0140353 | 
| 1988 | 0.0143041 | 
| 1987 | 0.0132817 | 
| 1986 | 0.0172889 | 
| 1985 | 0.0190759 | 
| 1984 | 0.0194185 | 
| 1983 | 0.021006 | 
| 1982 | 0.0262977 | 
| 1981 | 0.0256635 | 
| 1980 | 0.0331923 | 
| 1979 | 0.0325333 | 
| 1978 | 0.0253342 | 
| 1977 | 0.030633 | 
| 1976 | 0.028254 | 
| 1975 | 0.026302 | 
| 1974 | 0.02612 | 
| 1973 | 0.0408247 | 
| 1972 | 0.0360535 | 
| 1971 | 0.0356425 | 
| 1970 | 0.0468745 | 
| 1969 | - | 
| 1968 | - | 
| 1967 | - | 
| 1966 | - | 
| 1965 | - | 
| 1964 | - | 
| 1963 | - | 
| 1962 | - | 
| 1961 | - | 
| 1960 | - |