1970

6.6

1987

7.6

1919

0.0

2002

7.1

1948

7.9

1961

7.2

1952

6.9

2005

6.8

1987

5.7

1988

7.3

2006

6.6

1987

6.6

2012

7.3

1996

6.1

1935

5.8

1970

6.2

1942

7.0

1959

0.0

1999

7.6

2007

8.1