condition mean min max 4 h after light 8.792475 7.86015 9.7248 8 h after light 4.2716 3.51047 5.03273 12 h after light 1.288785 1.15186 1.42571 4 h after dark 0.768719 0.640328 0.9603 8 h after dark 3.53865 2.84853 4.18604 12 h after dark 4.773133333333334 3.66494 5.80546