condition mean min max 4 h after light 5.26892 4.34116 6.58651 8 h after light 5.385636666666667 1.28812 9.57165 12 h after light 5.877273333333333 3.90244 7.7343 4 h after dark 5.521873333333334 4.38994 6.15549 8 h after dark 5.10179 3.65812 6.72857 12 h after dark 8.549710000000001 7.47144 9.41741