5.4

2022

5.6

2006

6.1

1993

6.4

2013

6.5

2000

7.3

2008

7.0

2012

6.2

2019

7.0

2003

8.6

2011

6.6

2011

5.5

1984

9.2

2001

6.3

2007

5.7

1985

7.2

2000

5.2

2016

6.1

2017

5.9