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Since 1998 , 40 surveys have been conducted in Dow communities , all showing very good results . When it was discovered that one specific question on the New Earnings Survey led to a high number of telephone queries , the question proposed for the 2000 survey has been re-worded in an attempt to simplify and clarify the issue . Since the founding of the NA , no comprehensive survey has been conducted to determine the status of the Expanded Core Curricula ( ECC ) throughout the U.S. To get a picture of how the country is doing on Goal 8 , two surveys have been developed to see how far we have come and how much more needs to be accomplished to achieve this goal .