condition	mean	min	max
4 h after light	17.75095	16.1344	19.3675
8 h after light	25.437649999999998	25.1436	25.7317
12 h after light	40.6045	40.1075	41.1015
4 h after dark	33.62025	32.915	34.3255
8 h after dark	31.58115	31.4864	31.6759
12 h after dark	25.17315	23.5558	26.7905