condition mean min max 4 h after light 0.04675715 0.0 0.0935143 8 h after light 0.0190892 0.0 0.0381784 12 h after light 0.0233139 0.0 0.0466278 4 h after dark 0.04134415 0.0 0.0826883 8 h after dark 0.01021175 0.0 0.0204235 12 h after dark 0.0 0.0 0.0