condition mean min max 4 h after light 5.094335 4.45622 5.73245 8 h after light 3.16453 3.10431 3.22475 12 h after light 3.42649 2.65421 4.19877 4 h after dark 3.439226666666667 3.29089 3.59499 8 h after dark 4.5709 4.35727 4.91262 12 h after dark 3.78276 2.32051 4.5643