1958

5.9

1997

4.0

1976

6.2

1973

6.0

1984

5.6

1960

6.7

2023

6.5

2022

5.7

1976

6.6

2006

5.5

2002

6.3

1999

5.4

1959

6.8

1977

4.7

2007

6.7

2019

8.0

1992

6.7

1997

6.0

1975

7.2

1981

6.5