condition mean min max 4 h after light 0.5776745 0.383122 0.772227 8 h after light 6.06387 5.00526 7.12248 12 h after light 1.590614 0.506788 2.67444 4 h after dark 1.6721195 0.338769 3.00547 8 h after dark 1.49876 1.33878 1.65874 12 h after dark 2.4277249999999997 2.2194 2.63605