1930

6.0

1937

6.7

1939

7.2

1946

7.4

2002

7.3

1953

0.0

1958

7.2

1998

7.2

2007

6.3

1993

7.9

1970

4.6

2026

0.0

1949

6.1

1952

5.0

1998

5.9

1999

6.8

2006

6.8

1952

5.4

2007

6.7

1991

6.3