condition	mean	min	max
4 h after light	13.2179	11.9772	14.4586
8 h after light	6.967485	6.9191	7.01587
12 h after light	4.8787199999999995	4.40856	5.34888
4 h after dark	6.45613	6.28531	6.62695
8 h after dark	8.24257	8.14315	8.34199
12 h after dark	12.6271	11.8404	13.4138