1982

2.7

2005

0.0

2000

5.4

1990

6.1

1989

4.8

1978

5.6

2017

5.5

1962

6.6

1944

6.3

1963

6.5

1974

6.0

2010

4.1

1985

6.8

1972

5.5

1988

5.6

1975

5.1

1973

6.1

2010

6.3

2013

5.3

1945

6.7