2003

0.0

1994

6.0

1999

5.0

1989

8.2

1984

8.0

1998

7.3

2003

5.0

1988

7.4

2004

5.0

1971

8.1

1968

7.2

1952

5.2

2010

6.9

1966

0.0

2005

5.1

2005

7.4

1995

8.6

1967

7.8

1991

6.6

1999

7.2