condition mean min max 3 h after light 3.86764 3.42235 4.34595 6 h after light 2.5238733333333334 2.10831 3.13008 9 h after light 2.3058 2.00479 2.5754 12 h after light 3.4149675 2.78424 3.7385 3 h after dark 5.755396666666667 5.42316 6.15412 6 h after dark 6.26633 5.47925 7.4047 9 h after dark 5.172576666666667 4.38645 5.93442 12 h after dark 3.160755 3.12909 3.19242