condition	mean	min	max
4 h after light	9.050215	8.5533	9.54713
8 h after light	4.23444	3.82681	4.64207
12 h after light	4.515829999999999	4.24975	4.78191
4 h after dark	12.808	11.983	13.3121
8 h after dark	15.304533333333334	13.6129	16.3744
12 h after dark	11.769733333333333	10.2844	14.1024