<P> According to the Department of Homeland Security Yearbook of Immigration Statistics, during fiscal year 2006 (i.e., October 2005 through September 2006), 73,880 foreign professionals (64,633 Canadians and 9,247 Mexicans) were admitted into the United States for temporary employment under NAFTA (i.e., in the TN status). Additionally, 17,321 of their family members (13,136 Canadians, 2,904 Mexicans, as well as a number of third - country nationals married to Canadians and Mexicans) entered the U.S. in the treaty national's dependent (TD) status . Because DHS counts the number of the new I - 94 arrival records filled at the border, and the TN - 1 admission is valid for three years, the number of non-immigrants in TN status present in the U.S. at the end of the fiscal year is approximately equal to the number of admissions during the year . (A discrepancy may be caused by some TN entrants leaving the country or changing status before their three - year admission period has expired, while other immigrants admitted earlier may change their status to TN or TD, or extend TN status granted earlier). </P> <P> According to the International Organization for Migration, deaths of migrants have been on the rise worldwide with 5,604 deaths in 2016 . An increased number of undocumented farmworkers in California may be due to the initial passing of NAFTA </P> <P> Canadian authorities estimated that on December 1, 2006, 24,830 U.S. citizens and 15,219 Mexican citizens were in Canada as "foreign workers". These numbers include both entrants under NAFTA and those who entered under other provisions of Canadian immigration law . New entries of foreign workers in 2006 totalled 16,841 U.S. citizens and 13,933 Mexicans . </P> <P> In the second 1992 presidential debate, Ross Perot argued: </P>

Who tried to block the north american free trade agreement in 1993