2016

6.5

2001

7.0

2000

0.0

1998

6.6

2005

5.9

2004

0.0

2014

6.3

2015

6.3

2007

8.2

1987

5.1

2009

0.0

2005

8.0

1997

7.0

1996

7.2

2013

5.3

1991

0.0

2020

6.7