2000

6.3

1990

7.5

1995

7.7

1996

6.9

1994

0.0

1986

5.8

1994

6.0

1983

7.2

1994

4.2

2009

6.3

1993

7.2

1997

6.3

1994

5.6

1999

6.9

1983

6.8

2015

5.2