1988

7.4

2000

6.7

2016

0.0

1993

3.5

1987

4.5

2016

5.9

1997

0.0

1991

4.9

2020

4.4

2019

6.0

1999

7.3

1987

7.3

2006

8.0

1985

4.1

1985

7.4

2012

7.0

2015

0.0

2004

6.3

2014

0.0

2006

5.3