condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.045588 0.0 0.136764 9 h after light 0.0 0.0 0.0 12 h after light 0.09309075 0.0 0.372363 3 h after dark 0.0 0.0 0.0 6 h after dark 0.07627133333333333 0.0 0.228814 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0791815 0.0 0.158363