-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - 23 - 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% -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.5.8 iQA/AwUBQk/4+7w9MOKEeRC8EQLacgCfY8RbeSCDZhuGYXsBxYxOwmV6s1IAoN4w TgkWAOYiVYkDRJeLMXlzBIkU =LiAB -----END PGP SIGNATURE-----