condition	mean	min	max
0 h after light	13.454899999999999	12.5094	14.4004
4 h after light	10.8012	9.9287	11.6737
8 h after light	3.897645	3.38741	4.40788
4 h after dark	3.715295	3.27668	4.15391
8 h after dark	10.901900000000001	10.0015	11.8023
12 h after dark	14.9131	14.3811	15.4451