Variety has the details...
It was Tuesday’s No. 1 program on television during its run among adults 18-34 and No. 2 behind only NBC’s “The Voice” in 18-49. Among all scripted dramas to have aired multiple times this spring, the FX series ranks second in adults 18-49 on cable (behind only AMC’s “The Walking Dead”) and seventh overall, according to Nielsen’s “live plus-3” estimates. Inclusive of linear and non-linear viewing through the first eight episodes, the limited series was averaging 12.7 million total viewers each week. It is anticipated that this average will hold and likely increase with the final two episodes and the accumulation of non-linear viewing in the weeks and months to follow.