2016

7.1

2004

8.3

1998

7.2

2016

7.0

2016

7.1

1999

7.9

2014

6.7

2011

7.6

2007

7.5

1989

7.4

1996

5.4

2011

6.1

1972

7.9

2000

8.0

2015

7.6

2013

7.3

2001

8.6

2018

6.5

2016

6.5

2016

6.8