condition mean min max 4 h after light 0.40577 0.0 0.877506 8 h after light 0.10310733333333333 0.0368391 0.190781 12 h after light 0.060127799999999995 0.0288952 0.082992 4 h after dark 0.3090638 0.0952584 0.589241 8 h after dark 0.18879733333333334 0.0 0.379755 12 h after dark 0.9937323333333333 0.674081 1.51899