condition	mean	min	max
4 h after light	7.383473333333334	6.84956	8.096
8 h after light	1.3977816666666667	0.708625	2.21766
12 h after light	1.100541	0.79899	1.69485
4 h after dark	5.71951	4.6118	6.76592
8 h after dark	14.670373333333334	9.63472	17.3339
12 h after dark	19.5871	17.4524	21.1107