2002

6.3

2000

7.4

2017

6.7

1999

5.4

1989

6.0

2004

3.8

2019

6.1

1992

5.0

2008

6.8

2014

5.2

2004

5.5

2011

5.3

2012

6.3

2011

3.4

2025

5.0

1998

5.8

1991

5.8

2010

4.5

1977

4.1

2018

5.7