1992

1.5

1993

4.9

2022

5.1

1997

0.0

2015

9.0

1991

7.1

2004

6.0

1996

1.0

1993

2.6

2007

5.0

2002

6.8

1995

5.8

1990

5.3

2007

5.3

1993

4.8

2005

0.0

2007

4.7

2004

7.5

2006

7.2