During the Lyndon B. Johnson administration, Crown Heights was declared a primary poverty area due to a high unemployment rate, high juvenile and adult crime rate, poor nutrition due to lack of family income, relative absence of job skills and readiness, and a relatively high concentration of elderly residents. Violence broke out several times in the neighborhood during the late 20th century, including during the New York City blackout of 1977: More than 75 area stores were robbed, and thieves used cars to pull up roll-down curtains in front of stores.