condition	mean	min	max
4 h after light	15.461064499999999	15.03878	15.883349
8 h after light	15.6097565	15.336164	15.883349
12 h after light	14.22448	12.917577	15.531383
4 h after dark	19.970876500000003	15.678183	24.26357
8 h after dark	16.6060225	15.733409	17.478636
12 h after dark	17.478636	17.478636	17.478636