1954

7.0

1978

5.2

2001

7.0

2020

6.3

2008

5.8

2023

6.4

2000

6.7

1990

4.7

1989

7.4

1955

4.2

2005

5.8

1966

5.4

2005

4.6

1959

5.3

1978

5.7

1971

4.1

1969

5.8

1934

7.5

1949

6.6

1961

3.6