1993

8.0

1997

6.5

2001

6.2

2018

5.5

1964

7.1

1908

0.0

1931

7.2

1953

6.3

1968

6.3

1960

6.1

1968

6.9

1966

6.3

1958

6.6

2008

5.5

2018

6.5

1966

6.4

1965

6.7

1981

3.3

2000

7.3

2003

5.0