2007

8.0

2019

7.0

2020

6.5

1989

5.5

1998

6.1

2002

6.6

2011

6.4

2012

5.9

2013

6.2

1993

6.2

1988

6.5

2003

6.8

2014

4.6

2013

7.1

1993

6.6

2018

7.2

2017

6.7

2008

5.8

2019

6.7

1993

6.5