condition	mean	min	max
4 h after light	18.3513995	17.597771	19.105028
8 h after light	16.9247575	15.996883	17.852632
12 h after light	17.360967000000002	17.330129	17.391805
4 h after dark	20.764246	19.366116	22.162376
8 h after dark	20.196789000000003	19.815531	20.578047
12 h after dark	21.801347	21.801347	21.801347