1968

6.4

1959

8.2

1993

6.1

2020

6.0

1932

7.8

2015

8.1

2010

6.3

2022

7.6

1976

4.9

1931

8.3

2014

6.5

1937

6.7

1985

5.3

2002

10.0

2012

6.9

2010

9.1

1977

5.4

1980

7.8

1994

5.3

2015

6.0