condition	mean	min	max
4 h after light	2.846215	0.0	5.69243
8 h after light	5.43653	4.64801	6.22505
12 h after light	6.60327	5.67669	7.52985
4 h after dark	16.19725	10.0669	22.3276
8 h after dark	11.7559	11.189	12.3228
12 h after dark	5.539395000000001	4.8958	6.18299