2008

5.7

2001

6.7

2013

6.5

2007

10.0

1985

6.2

1993

5.6

2017

4.5

1969

6.6

2007

5.5

1977

7.6

2009

5.3

2002

6.3

2011

6.6

1998

6.0

2010

5.2

2018

6.7

1990

6.1

1999

6.4

2017

6.5

2012

6.7