1991

2.5

1972

0.0

1978

6.2

2013

5.3

1990

6.1

1963

5.5

1995

4.5

1995

6.4

2004

6.6

1996

6.8

1966

6.6

2008

8.1

1965

7.8

1967

6.9

1979

6.8

1977

7.2

1985

7.7

1983

7.6

1989

6.0

1967

7.1

1993

6.7

1982

7.2

1984

7.3

1999

6.5

1989

8.0

2008

6.9

2003

10.0

1993

5.7

1989

8.3

1986

6.0

2001

8.1

2001

7.0

1998

8.0

1990

6.2

1985

7.6

1993

8.1

1978

5.5

1997

7.7

2002

7.3