2005

8.2

1996

9.6

1990

7.8

1996

7.9

2015

3.7

1997

6.0

1993

6.3

2000

0.0

1999

6.9

1995

7.3

1999

0.0

1995

6.7

2004

7.4

2000

8.5

1991

5.5

2014

5.9

2005

6.7

2003

6.3

1999

0.0

1988

6.0

1995

5.7

2000

2.2