1995

8.0

1981

7.2

1944

5.5

2001

5.6

2008

7.5

2007

6.1

2007

7.4

2017

6.4

2006

6.8

1990

7.3

2002

7.0

1992

6.6

1972

7.4

1979

5.8

1976

6.6

1994

6.2

1943

5.5

1936

5.6

2003

6.3

1976

7.2