2016

6.8

1978

10.0

1949

7.9

2006

6.1

2002

6.7

1999

6.5

1987

7.1

1972

6.0

2006

6.6

2014

6.8

2000

7.1

1961

6.6

1997

7.6

1995

8.4

1991

7.6

2008

6.2

1999

6.5

2006

6.8

1992

7.4

1944

7.6