1987

6.1

2011

6.5

2015

6.6

2015

6.7

2006

6.0

1918

6.8

2022

7.8

1985

7.0

1993

6.5

2000

7.1

1980

5.3

2001

8.9

1943

6.1

2002

6.5

2008

8.7

1962

5.5

2009

5.6

1969

4.7

1974

5.7