condition	mean	min	max
4 h after light	19.27265	17.1996	21.3457
8 h after light	26.89315	25.1257	28.6606
12 h after light	31.08195	29.0088	33.1551
4 h after dark	26.618850000000002	24.6855	28.5522
8 h after dark	21.438699999999997	20.3802	22.4972
12 h after dark	22.1256	21.9494	22.3018