condition mean min max 0 h after light 0.759915 0.0 1.51983 4 h after light 0.3739505 0.0 0.747901 8 h after light 0.75048 0.0 1.50096 4 h after dark 0.0 0.0 0.0 8 h after dark 0.3735445 0.0 0.747089 12 h after dark 0.3787715 0.0 0.757543