1995

3.0

2003

5.6

1998

5.7

1992

2.8

1987

4.8

2003

7.2

1993

5.2

1979

7.5

1984

6.9

2001

0.0

1995

5.6

1987

6.0

1999

7.8

1992

6.0

1991

3.5

1986

7.1

1988

6.2

1994

5.3

1995

5.2

1999

7.8