condition mean min max 4 h after light 0.819518 0.758961 0.880075 8 h after light 0.6410545000000001 0.534576 0.747533 12 h after light 0.722439 0.276818 1.16806 4 h after dark 0.429364 0.0 0.738502 8 h after dark 0.3150153333333333 0.0 0.652036 12 h after dark 1.305965 0.409685 2.03254