Comparative dates on which the Nationals have notched their 16th win, each season:
2005 - 6th May (29th match of season)
2011 - 7th May (33rd match)
2010 - 8th May (30th match)
2008 - 12th May (39th match)
2007 - 20th May (44th match)
2006 - 21st May (44th match)
2009 - 6th June (55th match)
