2014

5.6

1993

5.8

1962

7.9

1938

7.5

1986

5.7

1969

7.4

1991

5.9

1944

7.6

2000

5.0

2011

5.5

2005

6.5

1968

7.4

2002

6.5

1986

5.8

1980

6.4

2001

6.1

1966

6.7

1974

7.5

2000

7.3

2012

6.1