condition	mean	min	max
4 h after light	4.65219	4.61091	4.72659
8 h after light	4.58063	4.47204	4.678780000000001
12 h after light	4.593056666666667	4.57033	4.62215
4 h after dark	4.719753333333333	4.57342	4.8722199999999996
8 h after dark	4.48479	4.36817	4.63957
12 h after dark	4.550096666666667	4.520490000000001	4.57808