condition mean min max 4 h after light 0.7286196666666667 0.22741 1.15359 8 h after light 1.0443243333333334 0.331169 1.87613 12 h after light 1.5070489999999999 0.706707 2.43883 4 h after dark 1.70808 1.24156 2.07545 8 h after dark 1.089597 0.641646 1.91657 12 h after dark 1.1338553333333334 0.641166 1.39822