condition mean min max 0 h after light 0.32592 0.217022 0.434818 4 h after light 0.5420865 0.442258 0.641915 8 h after light 0.546082 0.429419 0.662745 4 h after dark 0.534121 0.426286 0.641956 8 h after dark 0.4301805 0.213739 0.646622 12 h after dark 0.4311 0.212009 0.650191