condition mean min max 2 h after light 1.775553 0.719798 2.68466 6 h after light 1.4203428333333334 0.601897 2.49744 10 h after light 1.1671298333333333 0.507719 2.3115 14 h after light 1.2908118333333334 0.743618 1.87753 18 h after light 1.5726928333333334 0.667353 2.87383 2 h after dark 2.37208 1.57151 4.08989