2017

7.0

2007

6.2

1999

7.1

2003

7.2

2009

5.9

1989

7.9

1967

7.4

1995

3.0

1999

5.4

2006

7.8

2005

8.1

1999

7.7

1978

4.0

1969

7.3

2003

5.8

2007

6.6

2001

7.7

1998

7.3

1978

0.0

1977

0.0