condition	mean	min	max
4 h after light	14.9899	13.7604	16.2194
8 h after light	16.51965	15.8255	17.2138
12 h after light	18.750300000000003	18.3306	19.17
4 h after dark	21.4838	21.1345	21.8624
8 h after dark	21.640833333333333	21.2792	21.8584
12 h after dark	16.4226	15.8099	16.7597