2002

4.1

1986

3.0

2017

4.6

2003

6.4

2007

6.1

2001

2.8

1990

5.8

1992

7.4

1987

4.7

1988

4.5

1990

0.0

1993

3.3

1986

4.0

1986

5.8

1987

6.0

1989

7.1

2006

8.0