1975

0.0

1993

5.1

2005

0.0

1997

4.4

1979

7.0

1981

3.8

2019

7.8

1996

5.0

1984

7.2

1992

5.3

1979

6.8

1990

7.4

2001

7.6

1999

7.9

2010

7.8

1985

7.5

1990

6.3

1991

7.2

1982

6.4

1980

5.9

1992

6.2

1975

5.0

1991

6.0

1994

3.0

1975

7.0