condition mean min max 3 h after light 2309.1046666666666 692.614 3539.85 6 h after light 909.3096666666667 556.725 1559.03 9 h after light 515.3956666666667 445.194 573.485 12 h after light 822.66725 653.951 947.596 3 h after dark 1313.858 930.654 1633.93 6 h after dark 1217.529 441.137 1852.39 9 h after dark 906.938 544.582 1463.18 12 h after dark 501.5935 312.092 691.095