1950

7.1

1942

6.0

2006

6.6

1999

6.5

1983

7.3

2018

6.7

1996

7.0

2005

6.7

1988

7.7

2003

6.3

2007

7.6

1975

5.7

1987

6.0

2016

0.0

2017

5.7

2018

8.1

1984

3.8

1989

7.3

1997

7.6

2002

5.3