condition	mean	min	max
4 h after light	6.418403333333333	5.38392	7.12705
8 h after light	3.39	1.09671	5.1406
12 h after light	2.31227	1.37408	3.29183
4 h after dark	3.05082	2.17636	4.04279
8 h after dark	5.19204	3.87524	6.12865
12 h after dark	18.307666666666666	14.2151	22.9563