Aging (Kurtis)

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
2 (1990)	?	1	?	?	?	?
3 (1991)	?	1	1	?	?	?
4 (1992)	?	1	?	?	?	?
5 (1993)	1	?	?	?	?	1
6 (1994)	?	1	?	?	?	?
7 (1995)	2	?	?	1	1	2
8 (1996)	1	?	1	1	?	?
9 (1997)	1	C	?	?	?	?
10 (1998)	?	1	?	1	1	?
11 (1999)	1	?	?	1	?	?
12 (2000)	1	?	?	?	1	?