condition mean min max 4 h after light 10.410823333333333 10.34985 10.445039999999999 8 h after light 10.131260000000001 10.10287 10.1552 12 h after light 10.305726666666667 10.1778 10.38847 4 h after dark 10.544143333333334 10.50821 10.60097 8 h after dark 10.577069999999999 10.508289999999999 10.674439999999999 12 h after dark 10.41837 10.358139999999999 10.4962