condition mean min max 4 h after light 3.6884949999999996 3.1721 4.20489 8 h after light 1.52927 1.32027 1.73827 12 h after light 2.1138 1.73289 2.49471 4 h after dark 8.915545 6.67199 11.1591 8 h after dark 6.058809999999999 5.73403 6.38359 12 h after dark 4.803165 3.93251 5.67382