1988

6.2

2009

7.4

2010

7.5

1993

5.8

2012

5.4

2022

6.1

1995

5.2

1992

6.8

2015

6.3

2013

7.6

2015

7.6

2003

6.4

2004

7.1

2023

6.1

2005

5.7

2023

7.4

2020

6.8

6.7

1991

8.1

2014

5.7