condition	mean	min	max
4 h after light	16.3474675	13.038416	19.656519
8 h after light	15.9774635	15.781472	16.173455
12 h after light	14.835502	14.580677	15.090327
4 h after dark	14.909067	14.727807	15.090327
8 h after dark	14.6855755	14.280824	15.090327
12 h after dark	16.243439	16.243439	16.243439