2015

10.0

2007

6.9

2000

7.2

1999

5.7

5.7

2015

6.9

2014

5.8

2005

6.6

5.6

2007

9.8

1936

6.8

2016

5.1

2018

6.1

1979

6.3

2016

6.3

1989

6.2

1970

6.7

2015

7.8

2013

5.9

1976

6.9