condition	mean	min	max
4 h after light	9.449056666666667	9.1813	9.69985
8 h after light	9.52153	9.41653	9.72775
12 h after light	9.461143333333334	9.40397	9.50305
4 h after dark	9.609703333333332	9.5768	9.659939999999999
8 h after dark	9.581529999999999	9.4759	9.65359
12 h after dark	9.42955	9.36134	9.5462