condition mean min max 4 h after light 0.0121834 0.0 0.0243668 8 h after light 0.0 0.0 0.0 12 h after light 0.004237095 0.0 0.00847419 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.006555033333333334 0.0 0.0196651