1974

2.4

2003

0.0

2014

5.5

2009

2.3

1973

4.4

1968

2.9

1978

4.9

2016

5.8

2018

10.0

2017

3.9

2000

2.9

1977

4.6

1987

3.1

1980

2.5

1983

3.4

1984

4.7

2012

2.0

1970

3.8

2017

5.1

1988

0.0