condition mean min max 4 h after light 8.513323333333332 8.392339999999999 8.59976 8 h after light 9.929716666666666 9.817210000000001 10.017389999999999 12 h after light 9.748253333333333 9.59273 9.88694 4 h after dark 10.20423 10.08875 10.26303 8 h after dark 10.235963333333334 10.14609 10.293460000000001 12 h after dark 9.88444 9.773530000000001 9.9771