2006

5.6

1984

6.5

1977

4.8

1990

5.9

2003

5.2

1982

6.3

1983

5.7

2013

6.8

2010

7.8

2004

4.9

1984

5.9

2018

7.5

1985

6.6

1983

6.9

1980

6.3

1985

6.3

1975

7.2

2019

6.3

1989

6.7

2001

6.4