condition	mean	min	max
4 h after light	4.251424999999999	3.89429	4.60856
8 h after light	10.681635	9.74747	11.6158
12 h after light	15.8889	14.7588	17.019
4 h after dark	21.3731	21.0842	21.5676
8 h after dark	15.915833333333333	14.5267	17.7164
12 h after dark	8.113956666666667	7.48397	8.74659