The UIA's influence continued to grow with the nation's manufacturing sector, whose output doubled between 1918 and 1929, alone. A 1930 coup d'état and the onset of the great depression erased many of these gains, initially. Saved from collapse by a resilient consumer sector, industry was hampered by a virtual halt in capital goods investment - almost all of which had to be imported. The 1933 Roca-Runciman Treaty, which further impeded the import of U.S.-made production machinery, was vocally opposed by the UIA (though without effect). Most long-standing, protective tariffs stood, however, and the economic recovery that began in the mid-1930s was fully extended to manufacturing.