condition mean min max 0 h after light 0.6961435 0.347607 1.04468 4 h after light 0.77112 0.0 1.54224 8 h after light 0.960644 0.859758 1.06153 4 h after dark 1.71034 1.70697 1.71371 8 h after dark 0.8594795 0.855873 0.863086 12 h after dark 0.6867175 0.679156 0.694279