2016

7.3

2015

7.8

2001

6.6

1992

5.8

2002

7.5

1999

7.7

2004

8.3

2012

6.3

1993

7.9

1993

6.6

2015

6.5

2022

7.0

1998

7.2

2019

7.6

2018

7.8

2010

7.3

1997

8.1

2004

8.0

2005

8.2

2017

7.5