condition	mean	min	max
4 h after light	18.146641000000002	16.376346	19.916936
8 h after light	12.8203325	11.891909	13.748756
12 h after light	14.719209	12.944109	16.494309
4 h after dark	9.9915795	8.901485	11.081674
8 h after dark	10.2493155	9.913032	10.585599
12 h after dark	14.649647	14.649647	14.649647