1980

7.2

2003

6.6

1997

10.0

1984

7.5

2004

7.3

2018

9.3

2010

0.0

2012

6.7

2007

0.0

2007

0.0

2016

8.0

1978

1.0

2000

6.8

1989

7.2

2019

8.0

1998

7.4

2016

0.0

1981

0.0

1968

7.0

1976

0.0