condition	mean	min	max
4 h after light	3.82411	3.7389900000000003	3.96495
8 h after light	3.7342733333333333	3.68574	3.78787
12 h after light	3.7070066666666666	3.60132	3.78821
4 h after dark	3.7652300000000003	3.7031300000000003	3.81048
8 h after dark	3.84635	3.7819300000000005	3.91356
12 h after dark	3.75143	3.7219900000000004	3.78155