condition mean min max 2 h after light 1.0045683333333333 0.969608 1.04819 6 h after light 1.0617976666666666 0.979133 1.11779 10 h after light 1.2657233333333333 1.08438 1.52344 2 h after dark 1.31105 1.26953 1.33659 6 h after dark 1.0022739999999999 0.874712 1.10324 10 h after dark 0.513815 0.426577 0.576217