2000

6.6

1995

5.0

2013

6.6

1996

5.0

2002

7.4

1987

5.4

1993

5.2

1998

6.8

2007

5.1

2006

0.0

1992

4.9

1994

6.2

2001

5.9

1986

5.5

1994

5.2

1985

4.0