condition	mean	min	max
4 h after light	21.259900000000002	20.3908	22.129
8 h after light	15.09085	12.636	17.5457
12 h after light	17.097450000000002	16.09	18.1049
4 h after dark	23.659666666666666	18.3148	27.449
8 h after dark	24.3423	18.392	29.9749
12 h after dark	19.2064	16.8024	21.6253