condition mean min max 3 h after light 0.5707443333333333 0.303089 0.830436 6 h after light 0.391709 0.13715 0.63759 9 h after light 0.559507 0.369362 0.901583 12 h after light 0.658367 0.0 1.27292 3 h after dark 1.080592 0.58889 2.0287 6 h after dark 0.758685 0.223289 1.24388 9 h after dark 0.964396 0.710585 1.37568 12 h after dark 0.9797395 0.154539 1.80494