1976

3.5

1984

5.7

1989

0.0

1990

9.0

2015

0.0

1966

4.5

2011

0.0

2014

1.0

1993

0.0

1998

0.0

2013

9.6

2018

1.5

2005

7.0

2009

9.5

1987

8.0

2001

7.9

1956

5.9

1999

8.0

0.0

2022

0.0