condition mean min max 4 h after light 9.451478999999999 9.393471 9.509487 8 h after light 7.8936645 7.730387 8.056942 12 h after light 9.528940500000001 8.936914 10.120967 4 h after dark 10.153683000000001 9.6382 10.669166 8 h after dark 9.3308155 9.26816 9.393471 12 h after dark 10.409345 10.409345 10.409345