condition	mean	min	max
4 h after light	19.5600325	19.22628	19.893785
8 h after light	29.1307415	27.614613	30.64687
12 h after light	22.957197	21.851534	24.06286
4 h after dark	23.0560175	19.045454	27.066581
8 h after dark	24.3024705	21.416587	27.188354
12 h after dark	13.768185	13.768185	13.768185