1978

0.0

1989

7.2

2006

6.0

2002

6.3

2004

6.1

1967

7.5

2003

7.1

1983

5.7

2007

6.2

1958

6.6

1947

6.4

2001

6.2

1990

7.8

1953

7.7

2002

8.0

2006

7.0

1997

6.3

2022

4.8

2013

7.1

2011

8.2