2010

6.0

1981

7.2

2002

1.0

1999

7.6

2003

8.5

1993

7.0

1964

7.5

1971

7.8

1988

5.8

1966

6.1

2000

7.7

2004

10.0

1962

6.9

1985

7.5

1974

5.8

1999

6.4

1985

6.7

1988

7.1

2004

7.4

2005

7.7