condition mean min max 4 h after light 6.369303333333334 4.55984 8.9703 8 h after light 2.8196383333333332 0.950175 4.04376 12 h after light 2.72059 1.77184 4.38768 4 h after dark 2.25788 1.55404 2.77597 8 h after dark 3.2496833333333335 2.65489 4.28495 12 h after dark 4.98544 3.97129 5.90497