condition mean min max 1 h after light 18.3473327 17.98063075 18.71403465 3 h after light 15.283657676666666 11.98715485 19.37886634 5 h after light 16.831891953333333 16.57335651 16.99111089 7 h after light 14.023071316666666 13.94245068 14.10938532 9 h after light 14.196382243333334 13.22708531 14.687067800000001 11 h after light 13.17619694 11.82193283 14.43889981 13 h after light 15.021660429999999 13.77487148 16.19744827 15 h after light 15.31292876 13.77665702 17.55523031 1 h after dark 15.326359873333333 14.31583292 16.72077696 3 h after dark 15.186540516666666 14.70313727 15.75514882 5 h after dark 16.08994330666667 15.82299547 16.52427724 7 h after dark 13.156887973333333 11.16790731 15.33399086