1997

6.9

2003

7.6

1993

6.3

1950

7.0

2016

4.8

1991

6.2

1986

6.9

1983

6.2

1998

6.4

1967

7.5

0.0

2014

6.4

2005

6.6

1966

7.7

1999

8.0

1946

7.8

2005

6.7

2002

5.3

1996

6.5

2017

2.5