condition mean min max 4 h after light 0.04848345 0.0 0.0969669 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.035903199999999996 0.0 0.0754257 12 h after dark 0.1240068 0.0150464 0.223946