2009

5.9

1996

6.0

1966

6.7

1994

6.0

1964

7.2

2002

6.7

2005

6.2

1999

5.9

1962

4.8

1990

7.4

1998

5.7

1957

7.7

1986

6.1

1989

8.3

1993

5.5

1993

7.9

1995

7.8

1963

7.2

1991

0.0

1997

4.5