condition	mean	min	max
4 h after light	9.20622	9.00615	9.32434
8 h after light	9.292923333333334	9.24796	9.34728
12 h after light	9.219506666666666	9.10332	9.33312
4 h after dark	9.272689999999999	9.2378	9.296289999999999
8 h after dark	9.19605	8.96497	9.33312
12 h after dark	9.2774	9.21787	9.319360000000001