condition	mean	min	max
0 h after light	7.314315	7.04658	7.58205
4 h after light	17.177	14.4097	19.9443
8 h after light	19.55705	16.2668	22.8473
4 h after dark	7.195695	4.87008	9.52131
8 h after dark	13.15765	11.6642	14.6511
12 h after dark	6.702675	6.62887	6.77648