This should be posted in the Statistical Procedures Community rather than here. However, regardless of the distribution of your actual response variable, you can get the mean of it at each level of your Dose variable by specifying it the LSMEANS statement. Do not use the ESTIMATE statement. Make sure that Dose appears in the CLASS statement. Add the ILINK and CL options which will add columns in the LSMEANS table labeled "Mean" which has the mean estimate and confidence limits. For example:
lsmeans dose / ilink cl;
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