condition	mean	min	max
0 h after light	14.926	14.6898	15.1622
4 h after light	8.242965	7.63522	8.85071
8 h after light	8.695125	7.62783	9.76242
4 h after dark	12.2681	11.0028	13.5334
8 h after dark	12.6955	12.3486	13.0424
12 h after dark	13.640799999999999	12.6113	14.6703