condition mean min max 0 h after light 0.9229605000000001 0.692991 1.15293 4 h after light 0.750278 0.704849 0.795707 8 h after light 2.26746 1.64306 2.89186 4 h after dark 1.98425 1.36416 2.60434 8 h after dark 1.881215 1.8321 1.93033 12 h after dark 1.14135 0.90104 1.38166