2018

4.0

2018

3.8

2016

5.1

2014

4.9

1989

4.5

1988

5.7

2012

1.5

2004

10.0

1989

4.3

1981

6.4

1985

7.0

1989

4.6

1983

8.2

1988

5.3

0.0

1990

6.0