condition mean min max 4 h after light 0.6128155 0.202951 1.02268 8 h after light 0.304798 0.165715 0.443881 12 h after light 0.1342305 0.0 0.268461 4 h after dark 1.601035 1.25619 1.94588 8 h after dark 0.44168299999999994 0.351473 0.531893 12 h after dark 0.7761835 0.523647 1.02872