AWHONN lifelines

Articles in SafetyLit
Y-Axis = Volume :: X-Axis = Issue
?=unknown status :: X=no issue published :: nn=articles from issue :: A=relevant article(s) IDed to add
S=searched, nothing relevant :: O=issue published but not yet searched :: C=combination issue

	1	2	3	4	5	6

1 (1997)	?	1	?	1	?	?
2 (1998)	1	?	1	?	?	?
3 (1999)	2	1	?	?	?	?
4 (2000)	1	?	?	1	?	?
5 (2001)	1	?	?	?	?	1
6 (2002)	1	2	?	?	?	?
7 (2003)	?	?	?	2	?	2
8 (2004)	?	?	3	1	1	?
9 (2005)	?	?	?	1	?	?
11 (2007)	1	?	?	?	1	?
12 (2008)	?	2	1	?	?	?
13 (2009)	2	?	?	?	?	?
14 (2010)	?	?	?	?	1	?