2005

7.2

1998

6.8

2009

6.5

1999

7.0

2016

3.9

2013

7.1

2023

10.0

2008

7.6

2014

6.1

1997

5.2

2004

7.3

1999

6.7

2009

6.2

1999

7.5

2006

6.3

2017

7.3

2009

6.4

2016

7.1

1989

2.4

1987

6.2