condition	mean	min	max
4 h after light	2.406765	1.73586	3.07767
8 h after light	2.606255	2.49588	2.71663
12 h after light	2.47042	2.29617	2.64467
4 h after dark	4.637385	3.96516	5.30961
8 h after dark	3.399425	3.18031	3.61854
12 h after dark	3.021955	3.00275	3.04116