condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.028488 0.0 0.056976 12 h after light 0.0 0.0 0.0 4 h after dark 0.05747753333333333 0.0 0.0937219 8 h after dark 0.0 0.0 0.0 12 h after dark 0.038128333333333334 0.0 0.114385