condition mean min max 4 h after light 0.4703946666666667 0.180854 0.628204 8 h after light 0.7057966666666666 0.133836 1.10455 12 h after light 0.8467709999999999 0.190461 1.55849 4 h after dark 0.8623999999999999 0.755377 0.978594 8 h after dark 0.997186 0.842545 1.26074 12 h after dark 0.8412656666666667 0.733682 0.910891