condition	mean	min	max
0 h after light	8.519435000000001	7.73446	9.30441
4 h after light	4.416425	3.70849	5.12436
8 h after light	5.364555	5.28814	5.44097
4 h after dark	7.014390000000001	6.41612	7.61266
8 h after dark	6.851955	6.68492	7.01899
12 h after dark	6.665825	5.02824	8.30341