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It should be apparent that such calculations are the development of an
approximate description of average properties of the A.A. Fellowship, and
by no means rigorous statistical findings. The methods are more akin to
those of operations research or systems analysis. They are useful
descriptions for the use of the Fellowship, but averages so broad that
professionals may wish for more detailed research that is beyond the
purposes and Traditions of A.A.
Other Data
Three sets of data are required for the construction of Figure 1: 1989
survey data on length of sobriety, membership numbers compiled by the
General Service Office of A.A. from 1970 forward, and average frequencies
of attendance at meetings for members with different lengths of sobriety.
Length of Sobriety
(Data of 1989 survey)
Sobriety Range % of sample
0-1 years 34.5%
1-2 13.3%
2-3 9.8%
3-4 7.4%
4-5 5.8%
5-10 17.2%
10-15 6.8%
15-20 2.8%
20-25 1.0%
25-30 0.5%
30-35 0.3%
35-40 0.1%
40-45 0.1%
45 plus 0.0%
no response 0.4%
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