condition	mean	min	max
0 h after light	16.9949	15.7363	18.2535
4 h after light	9.731455	8.43901	11.0239
8 h after light	30.727600000000002	24.9918	36.4634
4 h after dark	4.48066	3.47071	5.49061
8 h after dark	1.331525	1.22355	1.4395
12 h after dark	12.148105	4.65231	19.6439