condition	mean	min	max
4 h after light	16.169346666666666	12.986469999999999	21.10601
8 h after light	6.080206	1.4873379999999998	8.831152000000001
12 h after light	13.842170999999999	8.514823	18.98481
16 h after light	17.138293333333333	11.57066	20.463620000000002
4 h after dark	22.281313333333333	20.59589	23.25881
8 h after dark	22.310499999999998	15.167029999999999	26.501279999999998