condition	mean	min	max
4 h after light	15.354	13.6908	17.0172
8 h after light	11.8265	11.7209	11.9321
12 h after light	13.603	11.6343	15.5717
4 h after dark	18.259500000000003	17.4618	19.0572
8 h after dark	16.82355	16.7987	16.8484
12 h after dark	16.716	16.6988	16.7332