1997

7.6

2002

6.3

2000

7.4

2017

6.7

2024

6.3

1992

5.0

2004

3.8

2004

5.5

1999

5.4

2019

6.1

1989

6.0

2011

5.3

1998

5.8

2010

4.5

1991

5.8

2011

3.4

2012

6.3

2008

6.8

2025

5.0

2014

5.2