condition	mean	min	max
4 h after light	4.1534	4.1077	4.231380000000001
8 h after light	4.2286866666666665	4.11362	4.33354
12 h after light	4.28853	4.09762	4.48076
4 h after dark	4.253893333333334	4.143730000000001	4.35988
8 h after dark	4.226243333333334	4.06274	4.45011
12 h after dark	4.23257	4.13298	4.4107400000000005