1973

7.7

2005

6.5

2008

5.6

1996

5.8

2017

3.6

2004

5.4

2005

5.3

2009

6.5

1995

6.3

1978

6.2

2004

5.8

2016

7.1

1936

6.6

2024

0.0

2015

6.5

2007

6.3

2011

6.0

2013

5.8

2023

2.0

2018

7.0