1985

2.0

2007

5.4

2017

3.5

2009

5.2

2006

6.8

1988

6.2

1991

5.1

1991

1.0

1997

8.0

1969

5.4

2000

7.9

1990

5.6

1987

5.5

1979

6.7

1992

5.9

1984

7.5

1993

1.0

1993

7.0

2013

5.9

1988

0.0

1985

5.0

1997

3.5

1987

8.4

2018

0.0

1995

5.3

1972

6.3

2016

7.5

1990

0.0

1994

6.0

1990

6.9

1991

0.0