2022

5.6

2008

5.6

2013

6.1

2007

7.0

1985

5.8

2004

6.0

1978

6.1

2003

6.2

1987

5.3

1982

7.5

2011

6.4

2016

6.6

1980

6.5

2012

6.9

1980

6.7

7.9

2017

6.9

1999

6.5

2013

6.1

2009

5.4