condition mean min max 0 h after light 13.17845 12.7617 13.5952 2 h after light 13.63055 12.7843 14.4768 4 h after light 7.44365 6.58045 8.30685 8 h after light 7.6048849999999995 7.59043 7.61934 12 h after light 13.69505 11.8359 15.5542 2 h after dark 36.8159 32.4377 41.1941 4 h after dark 21.99455 16.6736 27.3155 8 h after dark 20.95245 16.6715 25.2334 12 h after dark 16.2165 14.8285 17.6045