2007

6.3

2022

6.1

1998

6.7

2004

5.6

2001

6.4

2008

5.8

2001

7.1

1989

6.2

2006

5.7

1996

5.3

1997

6.1

2021

6.6

1994

2.0

1993

6.1

1987

0.0

1997

6.6

2017

0.0

2001

4.3

2009

5.7

2022

4.8