condition	mean	min	max
4 h after light	18.857793333333333	15.506170000000001	20.541339999999998
8 h after light	15.282812666666667	9.680318	18.58134
12 h after light	20.05067	19.12833	20.66827
16 h after light	17.156897333333333	9.678902	23.14495
4 h after dark	21.968803333333334	19.20024	24.80324
8 h after dark	23.6469	21.91986	24.863979999999998