condition	mean	min	max
4 h after light	3.626183333333333	3.5760099999999997	3.65337
8 h after light	3.65067	3.61865	3.66974
12 h after light	3.669966666666667	3.6082400000000003	3.7597099999999997
4 h after dark	3.69427	3.64165	3.74208
8 h after dark	3.6897033333333336	3.5994300000000004	3.7482
12 h after dark	3.6796100000000003	3.59968	3.8066