2004

6.8

1992

5.1

1992

7.5

1959

6.1

1929

5.6

1986

2.7

2011

4.6

1968

0.0

1981

8.0

1935

7.3

1942

7.0

1954

7.1

1969

7.5

1999

6.8

2013

6.5

1980

3.5

1936

4.0

1943

4.5

2004

6.4

2007

6.6