condition	mean	min	max
0 h after light	3.36836	3.00015	3.73657
4 h after light	14.80265	13.1365	16.4688
8 h after light	36.3068	34.7492	37.8644
4 h after dark	15.1955	12.6322	17.7588
8 h after dark	6.53574	6.52307	6.54841
12 h after dark	3.235435	2.51026	3.96061