condition mean min max 4 h after light 0.60771 0.0 1.19882 8 h after light 0.767992 0.385407 1.07482 12 h after light 0.9730646666666667 0.437459 1.48178 4 h after dark 1.298195 0.565305 2.00074 8 h after dark 1.297357 0.793371 1.61214 12 h after dark 1.27336 1.08926 1.4991