condition	mean	min	max
0 h after light	18.84985	18.6991	19.0006
4 h after light	7.284565	6.25789	8.31124
8 h after light	8.184429999999999	7.43324	8.93562
4 h after dark	15.44275	14.3274	16.5581
8 h after dark	16.1955	15.668	16.723
12 h after dark	14.087399999999999	13.4694	14.7054