1986

5.4

1993

3.5

1971

7.2

2002

6.0

1983

7.6

1989

6.1

2019

6.0

2014

9.0

2016

5.9

1988

6.6

2005

5.1

1985

7.4

2015

0.0

1985

4.1

2012

7.0

2004

5.5

2006

5.3

2016

0.0

1963

7.0

2006

6.2