1981

5.2

2001

6.2

1996

6.5

1997

4.5

2014

0.0

2003

6.7

1999

5.0

2016

5.3

2002

2.2

2007

0.0

1994

7.0

2024

0.0

2004

4.8

2009

0.0

2005

5.2

1971

6.4

1970

6.1

2004

0.0

1997

2.0

2013

6.4

1995

4.6

2023

4.5