Comparative dates on which the Nationals notched their 81st win, each season:
2012 - 2nd September (133rd match of season)
2013 - 17th September (151st match)
2005 - 28th September (159th match) - final win of season
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2011 - finished 80-81
2007 - finished 73-89
2006 - finished 71-91
2010 - finished 69-93
2008 - finished 59-102
2009 - finished 59-103
