condition mean min max 4 h after light 0.46659433333333333 0.302229 0.690806 8 h after light 1.0505186666666666 0.295326 1.68319 12 h after light 1.2877333333333334 1.02282 1.64684 4 h after dark 1.85998 1.6951 2.11463 8 h after dark 1.149719 0.802442 1.66662 12 h after dark 0.6069 0.551073 0.65826