1997

6.8

2021

6.0

2005

5.9

1940

6.0

2007

6.2

1981

7.4

1977

5.3

2014

7.7

1957

0.0

2006

5.8

1966

7.1

1986

5.9

2004

6.9

1975

0.0

1955

7.3

1966

6.3

2020

6.0

2004

5.6

2016

6.7

1955

2.4