2016

4.8

2006

7.4

1999

3.0

2014

6.9

2014

7.2

1971

5.5

1974

5.3

1951

7.7

2000

6.3

2017

6.5

2013

5.6

1996

6.0

1993

6.2

2020

5.5

2008

5.4

1995

6.3

2003

6.6

2002

6.2

1994

5.8

2004

5.8