2014

5.9

1956

7.5

1976

7.1

2012

6.0

1984

7.2

2001

7.4

2002

5.8

1987

5.7

1999

7.6

1987

7.5

1990

6.7

1957

8.0

1972

7.4

1984

7.1

1973

7.6

1950

6.8

1997

6.3

1988

5.1

1965

7.8

1993

6.3