2016

5.4

2004

6.4

2002

5.2

2013

6.6

2006

5.5

2003

5.7

1984

7.5

2015

6.9

1998

6.0

2017

6.5

1993

6.5

2017

5.7

2014

6.8

1977

6.4

2003

7.3

2017

8.0

2006

6.6

2021

6.6

2017

7.3

2006

5.0