1996

6.5

2003

6.7

1997

5.3

2006

0.0

1984

6.9

2009

9.0

1997

0.0

2013

6.0

2022

0.0

2002

6.2

1981

7.8

2020

0.0

2011

6.0

2021

0.0

2012

0.0

1999

4.4

2015

7.6

1986

1.5

1989

6.0