condition	mean	min	max
4 h after light	17.07705	14.696	19.4581
8 h after light	7.413705	7.2222	7.60521
12 h after light	21.5101	19.0761	23.9441
4 h after dark	60.7804	56.0344	64.7417
8 h after dark	51.2309	42.0607	62.3557
12 h after dark	44.785833333333336	43.2731	47.6824