condition	mean	min	max
4 h after light	7.338372	6.792596	7.884148
8 h after light	7.6756725	7.054219	8.297126
12 h after light	7.767684	7.613563	7.921805
4 h after dark	6.8977615	6.72933	7.066193
8 h after dark	7.164451	7.004056	7.324846
12 h after dark	6.879555	6.879555	6.879555