condition	mean	min	max
0 h after light	15.23555	14.8001	15.671
4 h after light	11.07705	11.0715	11.0826
8 h after light	7.662685	7.50654	7.81883
4 h after dark	10.534105	9.15371	11.9145
8 h after dark	13.13055	12.7919	13.4692
12 h after dark	12.981200000000001	12.4451	13.5173