2002

6.0

2005

5.0

2009

8.0

1994

5.0

2011

5.0

1985

5.3

1985

4.2

2010

7.0

1998

5.8

1988

5.0

1988

4.4

1995

3.8

1990

5.0

2001

6.9

2013

7.3

1989

2.0