government used annexation as a strategy to mitigate White flight by annexing areas where White Americans moved. Between the 1970-1971 and the 1971-1972 school years, enrollment at the Houston Independent School District decreased by 16,000. They were overwhelmingly ethnic Whites; 700 African-American students left the system. As the suburbs developed and Texas enjoyed the 1970s oil boom, many Anglo Whites settled directly in established suburbs, and they lacked any ties to inner city Houston. In 2004 about 33% of Anglo white people residing in Harris County originated from the Houston area, either by birth or from growing up there as children. Demographers Max Beauregard and Karl Eschbach, both of University of Houston Center for Public Policy, concluded from their analysis of the 2000 U.S. Census that white flight from the city continued to occur in the 1990s. In the decade prior to the 2000 U.S. Census, White residents left communities within Houston such as Alief, Aldine, Fondren Southwest, Gulfton, and Sharpstown. Other communities in Houston that lost large numbers of Whites by the 2000 census include Inwood Forest, Northline, Northside, and Spring Branch. Communities in other parts of Greater Houston that lost large numbers of Whites include Channelview, Cloverleaf, Galena Park, and Pasadena. Lori Rodriguez said, regarding the movement of white people in Greater Houston leading up to the year 2000, "Picture a stone dropped on the urban core and ripples of people spreading from within the Loop to the second-ring suburbs between the Loop and Beltway 8; and then beyond, to the outer-ring settlements and even unincorporated perimeter; Kingwood, The Woodlands, FM 1960." In the period between the 1990 and 2000 censuses, the largest growth of non-Hispanic White Americans within Greater Houston occurred in White-majority communities, such as Clear Lake City, Kingwood, northwest Harris County, the FM 1960 corridor, and The Woodlands. European residents and immigrants 19th and early 20th centuries In the late 19th and early 20th century, Houston received numerous immigrants from Eastern and Southern Europe, many of whom entered through the Port of Galveston. As did other southern cities, Houston attracted "overflow" European immigrants first destined for industrial cities in the eastern seaboard and the Midwestern United States, which received larger numbers of Eastern Europeans and Southern Europeans in this period. In 1910, Houston had groups of Austro-Hungarians, Greeks, Italians, Russians, and Europeans from other populations. Those groups were smaller than the total of Mexican-Americans in