1939

7.6

2012

6.0

1950

7.0

1994

5.4

1993

7.4

1994

6.2

1987

4.0

1981

6.5

2005

5.8

2003

6.9

0.0

1931

6.8

2006

5.8

2017

6.9

2005

5.6

1982

6.4

1950

6.6

2005

6.4

1993

7.0

1986

7.0