The Portuguese economy changed significantly between 1961 and 1973. Total output (GDP at factor cost) had grown by 120 percent in real terms. The pre-revolutionary period was characterised by robust annual growth in GDP (6.9 percent), industrial production (nine percent), consumption (6.5 percent), and gross fixed capital formation (7.8 percent). The revolutionary period experienced a slowly-growing economy, whose only impetus was its 1986 entrance into the European Economic Community. Although Portugal never regained its pre-revolution growth, at the time of the revolution it was an underdeveloped country with poor infrastructure, inefficient agriculture and the worst health and education indicators in Europe.