2013

6.7

2021

6.5

2019

5.8

2006

6.8

2024

0.0

2008

6.4

1985

6.7

2003

7.6

2015

6.1

1960

10.0

2002

10.0

2007

7.5

2007

6.8

1968

7.5

2009

5.8

2021

0.0

2012

6.9

1977

0.0

1987

4.6

2000

6.0