1989

8.2

1984

8.0

1998

7.3

2005

5.1

1988

6.5

1991

0.0

2013

1.0

1984

5.9

1981

7.4

1982

7.8

2003

7.9

1991

7.9

1986

5.3

1988

7.2

1976

0.0

1978

5.0

2008

8.0

2018

6.0

2016

0.0

2005

10.0