This large number of immigrants was of great help for France's rapid post–World War II economic growth. The 1970s were marked by recession followed by the cessation of labor migration programs and crackdowns on illegal immigration. During the 1980s, political disfavor with President Mitterrand's social programs led to the rise of Jean-Marie Le Pen and other far right French nationalists. The public increasingly blamed immigrants for French economic problems. In March 1990, according to a poll reported in Le Monde, 76% of those polled said that there were too many Arabs in France while 39% said they had an "aversion" to Arabs. In the following years, Interior Minister Charles Pasqua was noted for dramatically toughening immigration laws.