condition mean min max 4 h after light 0.831184 0.769765 0.892603 8 h after light 0.7786435 0.753251 0.804036 12 h after light 0.8991965 0.861417 0.936976 4 h after dark 1.2581333333333333 1.14016 1.48518 8 h after dark 1.0004653333333333 0.811616 1.13614 12 h after dark 1.1049293333333334 0.573358 1.40555