No. According to the CIA Factbook, the net migration rate of Mexico is -3.11 migrants/1000 population. This means that every year, 0.3% of Mexico's population emigrates to Another Country. For 2012 that would be approximately 357,574 emigrants.
10%
Yes. In fact most immigrants into Mexico are American. According to the latest census (2010), there were 738,103 American nationals registered as immigrants and living in Mexico.
10%
Yes
NONE
Approximately 31.67 million people (10.3% of total population) can trace back their origin to Mexico. This however, does not take into account illegal immigrants, who count from 12 to 20 million.
85%
Probably Europe
Calling home
The dramatic growth in the nation's immigrant population has been accompanied by a significant decline in diversity. In 1990, immigrants from the top sending country - Mexico - accounted for 22 percent of the total foreign born. By 2000, Mexican immigrants accounted for 30 percent of the total. source:http://www.cis.org/articles/2003/back1203.html
During the 1970s, many Latin American immigrants came to the United States from countries such as Mexico, Cuba, and the Dominican Republic. Mexico was the largest source of Latin American immigrants during that period.
Briefly put, one hundred percent of the water in Mexico is in Mexico.