1999

6.8

2000

4.8

1988

4.4

2017

5.7

2021

6.8

2016

6.3

2019

6.6

2014

5.9

2013

0.0

2003

6.1

2002

7.1

2000

6.4

2005

7.0

2004

6.4

2001

6.2

2001

6.7

1998

6.0

2012

9.0

2015

7.2

1993

7.4