1975

6.4

2007

9.0

2020

6.2

2020

6.1

2005

8.6

1976

4.5

2018

7.1

2008

7.8

2013

5.8

2003

6.8

2006

6.7

2022

7.1

2008

5.6

2004

5.6

1943

6.4

1994

4.9

2015

6.3

2011

6.0

1974

6.5