condition mean min max 2 h after light 0.8943555 0.43499 1.32514 6 h after light 0.7425216666666666 0.449481 1.04564 10 h after light 0.7719923333333334 0.0 1.3412 14 h after light 0.9254114999999999 0.218366 1.38002 18 h after light 0.7921036666666667 0.339445 1.07913 2 h after dark 1.9852135 0.377371 2.83315