condition	mean	min	max
4 h after light	16.2273755	15.917703	16.537048
8 h after light	16.1525845	13.748756	18.556413
12 h after light	19.3922715	16.27467	22.509873
4 h after dark	17.736945499999997	16.917478	18.556413
8 h after dark	22.394803	21.326217	23.463389
12 h after dark	18.556413	18.556413	18.556413