condition	mean	min	max
4 h after light	3.9287900000000002	3.13057	4.72701
8 h after light	3.6116099999999998	3.08778	4.13544
12 h after light	3.964835	3.21573	4.71394
4 h after dark	4.26771	4.17977	4.35565
8 h after dark	5.69686	5.66332	5.7304
12 h after dark	5.425115	4.2978	6.55243