1990

9.0

1975

5.8

2018

5.6

1996

8.0

1976

4.7

2009

6.1

2019

7.8

1987

6.3

2008

2.0

2008

1.5

1977

7.3

1995

7.6

2001

4.4

2016

0.0

1964

0.0

2007

6.1

2014

6.9

2014

3.1

2006

7.8

2002

7.1