condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 1.05681 0.0 3.17043 9 h after light 0.8385333333333334 0.0 1.31855 12 h after light 0.0 0.0 0.0 3 h after dark 1.61934 0.0 2.93032 6 h after dark 0.0 0.0 0.0 9 h after dark 0.5168166666666667 0.0 1.55045 12 h after dark 0.0 0.0 0.0