condition	mean	min	max
4 h after light	21.54045	19.514	23.5669
8 h after light	21.295450000000002	21.2253	21.3656
12 h after light	19.7869	18.8419	20.7319
4 h after dark	20.813633333333332	19.5363	22.1636
8 h after dark	22.3914	21.662	23.1638
12 h after dark	20.983966666666667	20.1665	22.1553