condition	mean	min	max
4 h after light	19.8416025	19.309242	20.373963
8 h after light	21.7903585	20.545307	23.03541
12 h after light	20.829757999999998	19.493341	22.166175
4 h after dark	21.712864500000002	20.613287	22.812442
8 h after dark	22.276636	21.003581	23.549691
12 h after dark	21.326217	21.326217	21.326217