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 0.0 0.0 0.0 3 h after dark 0.0197963 0.0 0.0593889 6 h after dark 0.0 0.0 0.0 9 h after dark 0.017109633333333332 0.0 0.0513289 12 h after dark 0.0 0.0 0.0