condition	mean	min	max
0 h after light	11.54975	11.0746	12.0249
4 h after light	8.908235	8.51775	9.29872
8 h after light	17.88385	17.6009	18.1668
4 h after dark	16.1332	14.583	17.6834
8 h after dark	12.06695	11.4701	12.6638
12 h after dark	10.136575	9.21345	11.0597