1992

0.0

1997

6.2

1998

6.6

1988

5.0

1993

5.4

1989

6.0

1991

5.9

1995

5.9

1993

0.0

1992

3.5

1990

5.5

1995

4.7

1973

7.3

2000

6.5

1987

4.9

1996

7.5

2013

6.4

1971

5.5

2021

0.0

1985

1.0