condition	mean	min	max
0 h after light	8.54854	8.30324	8.79384
4 h after light	5.08291	3.98632	6.1795
8 h after light	6.2781400000000005	5.55616	7.00012
4 h after dark	8.949215	7.47483	10.4236
8 h after dark	8.450135	7.76489	9.13538
12 h after dark	6.4887250000000005	6.46034	6.51711