2001

7.3

1975

6.9

1994

6.7

2015

6.9

2006

7.8

2006

7.3

2006

5.4

1979

5.2

1969

0.0

1983

6.9

1962

7.6

1972

6.9

2018

9.5

1958

6.2

1957

6.1

1952

7.3

2013

7.0

2002

0.0

1945

8.1

1992

6.6