1931

7.2

1989

7.2

1996

6.8

1958

7.6

1984

8.0

1998

7.4

2003

5.9

1957

8.5

1966

7.7

2025

9.0

2014

5.9

1996

6.4

2004

6.8

1981

7.2

1996

7.3

1960

0.0

2000

6.4

2007

6.1

1972

6.9

1978

6.6