1986

0.0

2007

3.1

1994

2.0

2001

3.5

2002

5.0

2000

6.0

1991

5.9

1999

4.0

2001

6.6

1988

6.9

1993

5.0

2017

5.4

2006

0.0

2010

6.9

2012

7.0

1988

4.2

2002

2.5

2009

6.8

1995

7.7

2006

7.5

1999

5.8

2001

5.0