condition mean min max 3 h after light 1.54779 1.18242 1.73473 6 h after light 0.5580216666666666 0.420471 0.760249 9 h after light 0.18960933333333332 0.122174 0.225215 12 h after light 0.07685745 0.0381607 0.108924 3 h after dark 0.031184933333333335 0.0 0.0467785 6 h after dark 0.0 0.0 0.0 9 h after dark 0.1947238 0.0426008 0.4811 12 h after dark 0.059232 0.0463244 0.0721396