The petroleum sector dominates the economy, accounting for roughly a third of GDP, around 80% of export earnings, and more than half of government operating revenues. Venezuelan officials estimate that GDP grew by 3.2% in 2000. A strong rebound in international oil prices fueled the recovery from the steep recession in 1999. Nevertheless, a weak nonoil sector and capital flight undercut the recovery. The bolivar is widely believed to be overvalued by as much as 50%. The government is still rebuilding after massive flooding and landslides in December 1999 caused an estimated $15 billion to $20 billion in damage.