2011

6.7

2002

6.0

1989

0.0

1978

4.7

1982

7.0

2004

8.1

0.0

1984

8.4

1993

7.4

2008

2.0

1930

7.2

1988

5.0

2001

7.4

1983

7.8

1995

6.4

1969

7.4

1992

7.5

2000

6.5

2004

6.1

1990

7.4