condition	mean	min	max
4 h after light	18.360967000000002	17.910343	18.811591
8 h after light	16.2522285	15.653998	16.850459
12 h after light	19.095638	18.917962	19.273314
4 h after dark	24.2827965	23.043263	25.52233
8 h after dark	20.8253795	16.008061	25.642698
12 h after dark	26.70144	26.70144	26.70144