2004

4.7

1998

8.3

1988

4.5

2006

5.7

1996

4.1

2012

0.0

1986

5.1

1987

0.0

1992

7.1

1998

6.0

1997

7.6

2005

6.7

1992

0.0

1986

6.8

1997

10.0

2016

8.2

2008

6.2

1991

5.4

1993

8.1

2015

2.3

1998

6.8

1990

6.9

2002

6.1

1993

0.0

1996

0.0