Argentina has the largest railway system in Latin America, with  of operating lines , out of a full network of almost . This system links all 23 provinces plus Buenos Aires City, and connects with all neighbouring countries. There are four incompatible gauges in use; this forces virtually all interregional freight traffic to pass through Buenos Aires. The system has been in decline since the 1940s: regularly running up large budgetary deficits, by 1991 it was transporting 1,400 times less goods than it did in 1973. However, in recent years the system has experienced a greater degree of investment from the state, in both commuter rail lines and long-distance lines, renewing rolling stock and infrastructure. In April 2015, by overwhelming majority the Argentine Senate passed a law which re-created Ferrocarriles Argentinos (2015), effectively re-nationalising the country's railways, a move which saw support from all major political parties on both sides of the political spectrum.