condition mean min max 3 h after light 0.0178182 0.0 0.0534546 6 h after light 0.0161258 0.0 0.0483774 9 h after light 0.0159739 0.0 0.0479217 12 h after light 0.012472225 0.0 0.0498889 3 h after dark 0.06924033333333333 0.0 0.207721 6 h after dark 0.03413273333333333 0.0 0.0548448 9 h after dark 0.030188833333333335 0.0 0.0501293 12 h after dark 0.02122205 0.0 0.0424441