condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0197252 0.0 0.0362816 12 h after light 0.03529086666666667 0.0303214 0.0440861 3 h after dark 0.0565873 0.0 0.0934432 6 h after dark 0.07242126666666666 0.0 0.190673 9 h after dark 0.0089735 0.0 0.0269205 12 h after dark 0.017524599999999998 0.0 0.0525738