condition mean min max 4 h after light 1.213228 0.700456 1.726 8 h after light 1.91346 1.3876 2.43932 12 h after light 3.04509 3.01784 3.07234 4 h after dark 3.1507133333333335 2.96399 3.52089 8 h after dark 2.2736733333333334 1.89558 2.55621 12 h after dark 2.1815963333333332 0.945259 2.81379