IS sampling: N_sim=47 N_eff=40.5 dL range: 140 -- 38403 Mpc N=47 (simulated, no extrap) : H0 = 47.40 +/-19.27 (68%) +/-30.15 (95%) km/s/Mpc N=100000 : H0 = 44.72 +/-0.11 (68%) +/-0.21 (95%) km/s/Mpc Fisher: 2.69 ratio sampling/Fisher = 0.04 N=5000000 : H0 = 44.71 +/-0.03 (68%) +/-0.05 (95%) km/s/Mpc Fisher: 0.38 ratio sampling/Fisher = 0.09