2015

0.0

2016

7.4

1960

7.6

1996

6.0

1986

6.2

1980

7.0

2016

4.2

2003

7.3

1970

7.6

1998

6.2

2009

6.8

2003

8.1

1984

6.8

2011

6.5

2002

6.4

1999

5.9

2003

6.7

1983

6.1

2004

7.2

2003

0.0