2014

10.0

1996

6.5

1993

6.6

1987

5.2

2000

5.5

1988

6.2

1988

6.5

2014

7.0

2008

5.8

2012

8.2

1999

5.9

2020

6.5

2016

6.7

1994

6.2

2003

6.8

2001

6.4

2017

6.6

2010

7.2

1997

4.5

2014

5.5