1992

0.0

1997

6.6

1994

4.2

1995

6.4

1990

6.3

2006

3.2

2004

7.9

2019

7.1

2005

8.0

2014

7.9

2002

7.9

1999

5.8

2010

8.0

2012

7.2

1989

8.3

2011

8.2

1991

6.3

1997

5.4

1989

8.0

1995

6.4

1995

6.2

1994

7.2

1995

5.9