condition	mean	min	max
0 h after light	15.145499999999998	14.3722	15.9188
4 h after light	4.821809999999999	4.6057	5.03792
8 h after light	8.884415	8.16625	9.60258
4 h after dark	12.2832	11.0019	13.5645
8 h after dark	13.90205	12.7747	15.0294
12 h after dark	11.66255	10.1754	13.1497