condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.34603 0.0 1.03809 12 h after light 0.2701775 0.0 1.08071 3 h after dark 1.6923533333333334 1.19235 2.38481 6 h after dark 0.6867433333333333 0.0 2.06023 9 h after dark 0.0 0.0 0.0 12 h after dark 0.919435 0.0 1.83887