condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.02243356666666667 0.0 0.0444576 9 h after light 0.0143781 0.0 0.0226279 12 h after light 0.0053008 0.0 0.0212032 3 h after dark 0.017327266666666667 0.0 0.0259915 6 h after dark 0.019881333333333334 0.0 0.03719 9 h after dark 0.025454466666666665 0.0190938 0.0335993 12 h after dark 0.02289035 0.0200415 0.0257392