2006

5.9

1997

7.9

1972

7.1

2013

5.3

2004

6.4

1984

6.3

2006

5.5

1974

6.5

1968

4.8

1996

6.1

1931

7.1

1997

5.8

1979

5.6

1998

6.5

1987

5.2

1997

5.9

1956

7.0

2017

6.6

1954

6.2

1942

7.2