condition mean min max 2 h after light 2.1120215 0.830001 4.85144 6 h after light 3.5239183333333335 1.4283 7.90191 10 h after light 5.182875 2.61671 9.12267 14 h after light 4.023463333333334 1.65317 7.71741 18 h after light 3.4516471666666666 0.303093 9.92407 2 h after dark 1.427014 0.0 2.83598