1963

6.3

1996

6.7

2004

6.1

1985

0.0

1943

5.5

2003

6.0

2011

0.0

1971

4.8

1966

7.4

1992

6.1

2016

6.5

1974

8.5

1998

6.2

1998

7.0

1998

7.5

1957

7.1

1995

7.7

2007

6.0

2008

7.8

2012

0.0