condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0245747 0.0 0.0737241 12 h after light 0.018132125 0.0 0.0725285 3 h after dark 0.050736866666666665 0.0 0.0934398 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0