2003

7.8

1947

6.4

1988

7.8

2003

6.5

1997

6.9

1950

8.3

1998

6.4

1992

6.7

1995

8.2

2001

6.7

1971

6.4

1997

7.5

1990

6.3

1997

7.4

2014

6.4

1932

7.4

1984

7.7

1940

7.9

2003

5.8

1968

7.3