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 0.0202458 0.0 0.0809832 3 h after dark 0.0 0.0 0.0 6 h after dark 0.014837999999999999 0.0 0.044514 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0