1998

6.3

2007

6.9

2008

0.0

2008

6.4

1979

7.6

2000

5.3

2013

6.1

2014

6.7

2008

7.4

2025

0.0

1994

6.6

2006

7.1

1993

7.0

2017

0.0

1988

7.8

1969

5.3

2009

6.8

2004

5.2

2010

8.0

2024

0.0