condition mean min max 0 h after light 1.082961 0.865442 1.30048 4 h after light 1.268815 1.19676 1.34087 8 h after light 1.7930449999999998 1.38438 2.20171 4 h after dark 1.734145 1.51781 1.95048 8 h after dark 1.437405 1.27853 1.59628 12 h after dark 0.8219815 0.617343 1.02662