2007

6.2

2006

6.7

1986

6.9

2006

5.9

2004

7.0

2007

7.0

2002

6.4

2004

5.6

2016

7.1

2011

4.6

2006

5.2

1990

6.5

1979

5.9

2016

6.5

2000

4.8

2021

5.3

2009

5.0

1993

10.0

2013

5.3

2013

6.5