condition	mean	min	max
4 h after light	18.466700000000003	17.7068	19.2266
8 h after light	17.06615	16.4717	17.6606
12 h after light	17.4995	17.0756	17.9234
4 h after dark	18.5517	18.3505	18.7529
8 h after dark	18.91665	18.3793	19.454
12 h after dark	21.601799999999997	20.9928	22.2108