condition	mean	min	max
4 h after light	6.916600000000001	6.84325	6.98995
8 h after light	8.71701	8.47966	8.95436
12 h after light	8.707934999999999	8.45365	8.96222
4 h after dark	10.86945	10.7721	10.9668
8 h after dark	11.592749999999999	11.2532	11.9323
12 h after dark	11.2902	10.5569	12.0235