condition	mean	min	max
4 h after light	22.3437	19.6238	25.0636
8 h after light	18.0474	17.8448	18.25
12 h after light	18.528	16.2285	20.8275
4 h after dark	33.2598	19.7642	46.7554
8 h after dark	19.1772	18.735	19.6194
12 h after dark	27.39025	25.5127	29.2678