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In a recent study of overcast versus cloud-free days in China , researchers from the U.S. Department of Energy ’ s Pacific Northwest National Laboratory found that the amount of sunlight reaching the ground at 500 measurement stations in China fell dramatically between 1954 and 2001 . Comparing these values with exposure estimates indicates that the amounts considered acceptable by government agencies are 100 to 500 times higher than the highest estimated human exposure levels . Offer may be rejected for public policy reasons : If the acceptance of an offer might in any way be detrimental to the Government 's interests , it may be rejected even though it is shown conclusively that the amounts offered are greater than could reasonably be collected in any other manner . Blind persons who work should not be concerned that the amount of their future benefits will be reduced because of periods of low or no earnings . I have a sense that the amount I have to know is growing faster than my ability to know it . The study , part of Dr. John Wennberg 's 1998 Dartmouth Atlas , shows that the amount of care that Americans receive in their final months of life varies according to the part of the country they live in . The result of this could very well be that the amount of revenue allocated to the equipment is less than the cost of that equipment . Students may be led to believe that the amounts stated on the certificates are all the aid for which they are eligible , and thus may not consider costlier institutions of higher education .