1985

6.8

1980

4.9

1978

6.8

2018

6.9

2022

5.5

1931

6.1

1951

5.8

2004

3.3

1975

5.2

1999

6.2

1983

4.4

2015

4.5

1984

4.1

1973

5.1

2009

5.0

1980

8.2

1995

6.0

1981

6.7

1998

5.2

1978

6.3