condition mean min max 4 h after light 2974.0984904999996 2384.305321 3563.89166 8 h after light 2187.7914115000003 1928.966151 2446.616672 12 h after light 2393.6026145 2101.050095 2686.155134 4 h after dark 2693.6183175 2407.750797 2979.485838 8 h after dark 3530.0115305 2611.224215 4448.798846 12 h after dark 3858.999941 3858.999941 3858.999941