February 2012: Up 4.1 percent.
2012 so far: Up 8.6 percent.
February 2011: Up 3.2 percent.
Full year: Down 0.003 percent.
February 2010: Up 2.9 percent.
Full year: Up 12.8 percent.
February 2009: Down 11 percent.
Full year: Up 23.5 percent.
February 2008: Down 3.5 percent.
Full year: Down 38.5 percent.
February 2007: Down 2.2 percent.
Full year: Up 3.5 percent.
February 2006: Up 0.05 percent.
Full year: Up 13.6 percent.
February 2005: Up 1.9 percent.
Full year: Up 3 percent.
February 2004: Up 1.2 percent.
Full year: Up 9 percent.
February 2003: Down 1.7 percent.
Full year: Up 26.4 percent.
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Source: FactSet.