UNODC, current cultivation remained "still well below the peak of 163,300 hectares recorded in 2000", as "significant reductions [...] have been made in the past five years and overall figures remain nearly a third below their peak of 2000". UNODC concluded that "substantial international assistance" is needed by Colombia and the other Andean countries "so they can provide poor coca farmers with sustainable alternative livelihoods" and that "aid efforts need to be multiplied at least tenfold in order to reach all impoverished farmers who need support". Analysis The results of Plan Colombia have been mixed. From the perspective of the U.S. and Colombian governments, the results of Plan Colombia have been positive. U.S. government statistics show that a significant reduction in leftover coca (total cultivation minus eradicated coca) has been observed from peak 2001 levels of 1,698 square kilometers to an estimated 1,140 square kilometers in 2004. It is said that a record high aerial herbicide fumigation campaign of 1,366 square kilometers in 2004 has reduced the total area of surviving coca, even as newer areas are planted. Despite this, effective reductions may appear to have reached their limits as in 2004, despite a record high aerial herbicide fumigation campaign of 1,366 square kilometers, the total area of surviving coca has remained constant, as an estimated 1,139 square kilometers in 2003 were followed by about 1,140 square kilometers in 2004. Additionally, recent poppy seed cultivation has decreased while coca cultivation actually has not. Overall attempted coca cultivation by growers (total planted coca without taking eradication into account) increased somewhat, from 2,467 square kilometers in 2003 to 2,506 square kilometers in 2004. Coca cultivation reached its highest point during the program in 2002 at 2,671 square kilometers. The U.S. and Colombian governments interpret this data to show a decline in potential production of cocaine, from a peak of 700 metric tons in 2001 to 460 in 2003 and 430 in 2004, as result of an increase in "newly planted [coca fields] in response to eradication," which should be less productive than mature coca. U.S. government officials admitted in late 2005 that the market price of cocaine has yet to rise significantly, as would be expected from the above reductions in supply. They pointed to possible hidden stashes and other methods of circumventing the immediate effect of eradication efforts which allow for a relatively constant flow of drugs able to enter into