1993

10.0

2019

5.6

2009

6.4

2008

6.3

2007

5.6

2014

6.2

1978

7.6

2007

5.8

2004

5.7

2025

0.0

2024

6.0

1995

6.9

1988

6.4

2001

6.2

2019

4.9

2013

4.2

2005

7.1

2006

6.6

1999

6.5

2016

7.3