1996

6.0

1990

5.6

1995

7.2

1999

5.4

1992

0.0

2012

6.5

1992

6.2

1998

7.3

1988

5.5

2008

4.8

2001

0.0

1995

5.6

1997

5.1

2009

7.7

2010

5.1

1999

5.7

1991

5.6