condition mean min max 3 h after light 0.7693423333333334 0.520642 1.22705 6 h after light 0.8023166666666667 0.737507 0.846098 9 h after light 1.1115583333333332 0.753185 1.37668 12 h after light 1.7193402500000001 0.824721 2.50853 3 h after dark 1.34629 1.14322 1.68467 6 h after dark 1.336646 0.987628 1.55872 9 h after dark 0.8084773333333334 0.54447 1.04113 12 h after dark 0.4107335 0.357513 0.463954