condition mean min max 4 h after light 1.154345 0.93865 1.37004 8 h after light 1.82783 1.74429 1.91137 12 h after light 3.571225 2.39763 4.74482 4 h after dark 3.87422 3.26269 4.48575 8 h after dark 2.9953250000000002 2.37518 3.61547 12 h after dark 2.4018550000000003 2.36619 2.43752