condition mean min max 4 h after light 1.659805 1.38599 1.93362 8 h after light 1.8557100000000002 1.75516 1.95626 12 h after light 1.5129700000000001 1.31983 1.70611 4 h after dark 1.2732393333333334 0.870848 1.70686 8 h after dark 1.8075700000000001 1.6408 2.07633 12 h after dark 1.5591433333333333 1.04393 2.06706