1922

7.7

1992

7.3

1999

6.5

1932

7.3

1977

6.6

1939

6.7

1971

5.5

1964

6.1

1970

5.9

1972

4.8

2013

3.4

1931

7.2

2020

6.3

1975

4.3

2005

5.0

2007

4.3

1999

5.5

2019

10.0

1997

6.1

1966

6.8