1997

4.7

2009

6.5

1999

6.0

1993

5.1

2005

6.1

1996

4.7

2009

7.2

2020

6.4

2006

8.0

2014

6.0

2017

6.1

2016

4.4

1984

0.0

2007

6.0

1993

7.4

2006

7.7

2022

4.0

1995

7.0

1985

7.0

1996

6.9