IS sampling: N_sim=56 N_eff=31.4 dL range: 2 -- 37592 Mpc N=56 (simulated, no extrap) : H0 = 81.95 +/-25.74 (68%) +/-41.69 (95%) km/s/Mpc N=100000 : H0 = 82.75 +/-0.30 (68%) +/-0.60 (95%) km/s/Mpc Fisher: 3.29 ratio sampling/Fisher = 0.09 N=5000000 : H0 = 82.75 +/-0.05 (68%) +/-0.10 (95%) km/s/Mpc Fisher: 0.47 ratio sampling/Fisher = 0.11