2006

6.5

1986

6.7

2004

6.0

2004

5.6

1975

5.9

2003

0.0

2009

5.8

2019

4.5

2021

3.2

2015

6.4

1999

6.0

1972

6.9

1973

4.7

1982

5.5

2009

6.0

2005

4.9

2017

1.5

1983

5.2

2007

6.6

2002

5.3