1989

5.1

1990

6.7

1992

6.2

2007

6.1

1990

7.6

1989

6.3

1992

6.3

1988

5.4

1990

6.2

1993

5.8

1988

7.3

1995

2.0

1993

6.5

1988

5.8

2001

6.8

1989

7.3

1990

6.9

1990

5.6

1988

0.0

2001

5.1

1998

5.3

1997

6.3

1994

5.0

1990

6.1

1989

7.1

1990

6.9

1992

7.1

1989

5.8

1994

6.6

1989

4.5

1991

7.0

1990

6.1

1990

6.6

1994

6.1

1988

4.6

1995

3.7

1989

6.0

2008

6.5

1989

5.5

1983

6.9

1986

6.7

1990

6.5

1993

5.0

1990

6.7