1986

5.8

2012

6.0

2011

7.1

1995

5.9

2010

6.8

1998

7.5

2016

6.4

2009

6.7

2014

5.7

1962

6.9

2003

5.5

1987

8.0

2020

4.7

2014

6.6

2013

6.7

2017

5.7

2011

5.4

2003

9.0

2021

5.4

2009

6.9