1998

6.2

2016

4.7

2014

6.0

2006

7.4

1950

8.1

2006

7.9

2002

7.3

1969

7.5

2017

7.6

2013

0.0

2021

3.7

2008

6.9

2022

5.7

2021

0.0

1981

6.0

2012

8.5

2004

5.6

1963

7.2

2025

0.0

2017

5.8