condition	mean	min	max
4 h after light	4.031843333333334	3.94999	4.1623
8 h after light	3.9032633333333333	3.8397900000000003	3.99369
12 h after light	3.93245	3.8514199999999996	4.0166699999999995
4 h after dark	4.0484800000000005	4.00296	4.12295
8 h after dark	3.9936366666666667	3.9097699999999995	4.1435900000000006
12 h after dark	4.014543333333333	4.008369999999999	4.0244