condition mean min max 4 h after light 2.01451 1.80447 2.22455 8 h after light 1.132085 1.06801 1.19616 12 h after light 0.6928855 0.574164 0.811607 4 h after dark 1.3330700000000002 1.24737 1.41877 8 h after dark 1.817555 1.64435 1.99076 12 h after dark 2.294905 2.19321 2.3966