2002

6.3

2008

6.8

1992

5.0

2000

5.6

2005

5.8

1998

5.8

1974

4.7

2021

6.0

2023

4.0

1991

5.8

1989

6.0

2004

3.8

1977

4.1

2019

6.7

2007

4.7

2022

5.6

2013

0.0

2011

5.3

2009

6.0

2017

6.7