The MTA has consistently run on a deficit, but increased spending in 2000–04 coupled with the economic downturn led to a severe increase in the financial burden that the MTA bore. The budget problems stem from multiple sources. The MTA cannot be supported solely by rider fares and road tolls. In the preliminary 2011 budget, MTA forecasted operating revenue totaled at $6.5 billion, amount to only 50% of the $13 billion operating expenses. Beyond this, steadily reducing support from city and state governments led to borrowing money by issuing bonds, which contributed heavily to the debt.