condition mean min max 4 h after light 4.923735000000001 4.27599 5.57148 8 h after light 3.326225 3.31882 3.33363 12 h after light 4.568379999999999 4.45798 4.67878 4 h after dark 6.86903 6.52254 7.22254 8 h after dark 7.983496666666667 7.08255 8.53217 12 h after dark 4.740983333333333 4.43278 5.19317