condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.164459 0.0 0.501957 10 h after light 0.0 0.0 0.0 14 h after light 0.09064916666666667 0.0 0.3476 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0