condition mean min max 4 h after light 0.7767215000000001 0.548363 1.00508 8 h after light 0.6612135 0.649621 0.672806 12 h after light 0.451882 0.348397 0.555367 4 h after dark 0.47086433333333333 0.316145 0.65837 8 h after dark 0.6128023333333333 0.492383 0.819503 12 h after dark 0.8256203333333334 0.611106 1.01305