1998

5.9

1996

6.9

1934

7.0

2005

5.8

1973

6.7

1941

7.2

2023

4.7

1972

7.1

1976

5.1

2014

5.4

1994

6.9

2008

5.8

1980

7.5

2011

0.0

1997

6.6

2015

6.0

1972

4.8

1978

6.0

1990

7.5

2016

6.5