condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.53471 0.0 1.06942 4 h after dark 0.0 0.0 0.0 8 h after dark 0.5877033333333334 0.0 1.76311 12 h after dark 0.0 0.0 0.0