condition	mean	min	max
4 h after light	3.94715	3.86418	4.11236
8 h after light	3.8591699999999998	3.8128900000000003	3.8931699999999996
12 h after light	3.9019366666666664	3.8952400000000003	3.91375
4 h after dark	3.98706	3.9251	4.02027
8 h after dark	3.852603333333333	3.77366	3.9681300000000004
12 h after dark	3.859773333333333	3.79253	3.9095199999999997