1969

0.0

2013

5.6

1984

7.0

1985

0.0

2008

5.7

1972

6.1

1975

6.7

1978

6.3

1973

7.1

1988

6.3

1994

5.8

2004

5.3

1996

5.7

2008

6.2

1994

7.1

1971

7.1

1988

6.2

1992

7.0

1989

6.6

1994

5.0