Comparative dates on which the Nationals notched their 13th win, each season:
2016 - 23rd April (17th match of season)
2017 - 23rd April (18th match)
2012 - 24th April (17th match)
2014 - 25th April (24th match)
2013 - 27th April (24th match)
2010 - 30th April (23rd match)
2005 - 30th April (24th match)
2011 - 1st May (27th match)
2008 - 3rd May (31st match)
2015 - 4th May (27th match)
2006 - 14th May (38th match)
2007 - 14th May (38th match)
2009 - 21st May (41st match)
