2006

5.4

1956

6.5

2007

7.6

2007

7.2

2002

5.9

1999

6.8

1997

7.8

2000

6.5

1960

7.3

1954

7.3

2002

7.0

2002

7.4

1937

6.6

1956

6.7

1999

5.9

1965

0.0

1948

7.7

1947

5.2

2015

5.6

2018

6.8