condition	mean	min	max
4 h after light	8545.769444333333	7551.705	9348.743333
8 h after light	9602.672776666666	7853.51	11278.79333
12 h after light	12464.505553333334	12305.02	12767.63333
1.5 h after dark	12639.05778	10775.61667	14364.88667
5.5 h after dark	12827.807776666667	10605.39	14455.16
9.5 h after dark	9464.731112333333	8451.696667	10638.59667