condition	mean	min	max
4 h after light	6.10599	5.712680000000001	6.346509999999999
8 h after light	6.06548	5.59432	6.34314
12 h after light	6.050256666666667	5.310980000000001	6.42517
4 h after dark	6.5398266666666665	6.14861	6.77959
8 h after dark	6.355623333333334	5.77439	6.68012
12 h after dark	6.52857	6.19842	6.696160000000001