condition	mean	min	max
0 h after light	16.26135	15.5938	16.9289
4 h after light	9.64014	7.37938	11.9009
8 h after light	16.0745	13.8811	18.2679
4 h after dark	37.03895	32.9386	41.1393
8 h after dark	33.7041	30.7804	36.6278
12 h after dark	16.9131	13.7484	20.0778