condition mean min max 4 h after light 0.17791733333333334 0.0 0.533752 8 h after light 0.40663600000000005 0.129757 0.550757 12 h after light 0.5776613333333334 0.259755 0.852196 4 h after dark 0.632653 0.566692 0.713596 8 h after dark 0.44773666666666667 0.196319 0.577268 12 h after dark 0.220577 0.179223 0.272277