1995

7.7

2012

6.8

1995

3.6

2013

5.8

2001

6.0

1985

7.7

2003

5.0

2021

7.8

2022

9.0

2005

8.3

2002

7.2

2017

8.5

2018

6.5

1993

8.4

1994

6.0

2006

6.4