condition mean min max 0 h after light 0.3462835 0.297117 0.39545 4 h after light 0.245313 0.100734 0.389892 8 h after light 0.25017665 0.0978093 0.402544 4 h after dark 0.48605349999999997 0.292438 0.679669 8 h after dark 0.538392 0.389469 0.687315 12 h after dark 0.29188800000000004 0.197459 0.386317