1979

6.4

1981

6.1

1997

5.1

2004

6.4

2018

6.0

2022

0.0

1979

5.7

2002

6.0

2020

0.0

2006

5.5

2007

5.8

1961

0.0

2004

3.4

1988

6.5

1993

7.5

2005

5.9

1992

2.9

1930

6.8

2007

7.2

1984

7.1