| 年份 | 意大利 |
|---|---|
| 2023 | - |
| 2022 | 28.343 |
| 2021 | 28.654 |
| 2020 | 28.961 |
| 2019 | 29.264 |
| 2018 | 29.562 |
| 2017 | 29.856 |
| 2016 | 30.145 |
| 2015 | 30.435 |
| 2014 | 30.728 |
| 2013 | 31.021 |
| 2012 | 31.316 |
| 2011 | 31.556 |
| 2010 | 31.673 |
| 2009 | 31.791 |
| 2008 | 31.908 |
| 2007 | 32.026 |
| 2006 | 32.144 |
| 2005 | 32.262 |
| 2004 | 32.38 |
| 2003 | 32.499 |
| 2002 | 32.618 |
| 2001 | 32.718 |
| 2000 | 32.778 |
| 1999 | 32.838 |
| 1998 | 32.898 |
| 1997 | 32.958 |
| 1996 | 33.018 |
| 1995 | 33.078 |
| 1994 | 33.138 |
| 1993 | 33.198 |
| 1992 | 33.258 |
| 1991 | 33.294 |
| 1990 | 33.274 |
| 1989 | 33.254 |
| 1988 | 33.234 |
| 1987 | 33.214 |
| 1986 | 33.194 |
| 1985 | 33.174 |
| 1984 | 33.154 |
| 1983 | 33.134 |
| 1982 | 33.114 |
| 1981 | 33.163 |
| 1980 | 33.36 |
| 1979 | 33.558 |
| 1978 | 33.757 |
| 1977 | 33.956 |
| 1976 | 34.156 |
| 1975 | 34.357 |
| 1974 | 34.558 |
| 1973 | 34.759 |
| 1972 | 34.961 |
| 1971 | 35.25 |
| 1970 | 35.728 |
| 1969 | 36.208 |
| 1968 | 36.691 |
| 1967 | 37.178 |
| 1966 | 37.666 |
| 1965 | 38.157 |
| 1964 | 38.65 |
| 1963 | 39.147 |
| 1962 | 39.645 |
| 1961 | 40.144 |
| 1960 | 40.639 |