condition mean min max 4 h after light 1423.09874 1022.500727 1823.696753 8 h after light 1404.436529 1222.294847 1586.578211 12 h after light 1292.4535165 1269.770518 1315.136515 4 h after dark 1213.1711695000001 1019.232057 1407.110282 8 h after dark 1088.9779315 1079.606487 1098.349376 12 h after dark 1157.265971 1157.265971 1157.265971