condition mean min max 4 h after light 5.6638166666666665 5.5539 5.8304 8 h after light 5.694 5.65653 5.76136 12 h after light 5.55577 5.40499 5.70873 4 h after dark 5.71649 5.67468 5.7826900000000006 8 h after dark 5.629933333333334 5.41199 5.76971 12 h after dark 5.701616666666666 5.65229 5.755269999999999