1988

6.3

1946

6.4

1946

6.7

1984

6.9

1953

5.9

1990

7.1

1960

7.2

2015

5.9

1951

5.0

1938

4.0

1950

6.9

2007

0.0

1985

5.7

2008

3.5

1964

5.8

1956

6.0

2005

0.0

2015

0.0