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 0.0 0.0 0.0 12 h after light 0.23122825 0.0 0.924913 3 h after dark 0.17008500000000001 0.0 0.510255 6 h after dark 0.243366 0.0 0.730098 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0