2003

5.7

2016

6.1

2012

6.0

2010

6.7

2014

6.5

2008

6.6

2010

7.1

1964

7.4

2016

6.4

2018

5.9

2007

7.2

2019

6.2

1994

6.2

1997

6.1

2019

7.7

2017

4.7

1997

5.8

1998

4.8

2011

5.5

1997

8.0