2015

4.8

2006

5.2

1987

4.2

1998

5.2

2004

7.9

1998

5.5

2018

0.0

1992

6.8

2014

5.0

1983

5.0

1986

5.6

1989

0.0

2003

6.0

2006

6.1

2018

6.9