2015

6.3

1976

7.2

1979

6.4

1993

7.3

1970

7.1

1970

7.5

1994

6.2

1992

7.2

1955

6.8

0.0

1974

4.7

1977

7.7

1964

0.0

2001

6.4

1987

7.5

2006

7.5

1999

7.8

1995

7.0

1946

7.8

1942

6.6