2014

4.6

1969

5.6

1970

7.2

2009

6.6

2010

6.3

2009

6.1

2008

4.8

2003

3.7

2008

5.9

1990

6.2

1993

6.0

2018

6.0

1998

5.7

1998

6.4

1999

5.6

1995

5.8

1984

5.5

2006

4.8

1979

6.7

1996

4.8