1995

5.5

2001

6.9

1975

6.3

2001

6.6

2001

6.5

2010

7.5

2009

5.7

1999

6.8

2012

0.0

2013

3.5

2016

5.1

2001

6.4

2012

5.5

2003

1.6

1997

6.5

2020

7.0

1982

6.7

1984

6.6

2003

5.1

1983

6.1