2012

5.5

1973

7.7

1968

6.4

1989

9.3

2014

5.6

1988

5.8

1991

6.3

1977

6.6

2015

6.6

1989

5.4

1947

7.3

2000

7.1

1993

6.2

1987

6.0

1963

6.8

1994

6.7

1997

6.1

1981

6.3

0.0

1970

6.9