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 0.229332 0.0 0.687996 4 h after dark 0.829075 0.0 1.52174 8 h after dark 0.25353566666666666 0.0 0.760607 12 h after dark 1.070197 0.426501 1.78356