Year	Number of Firms
1992-01-01	53
1997-01-01	250
2002-01-01	157
2003-01-01	175
2004-01-01	185
2005-01-01	201
2006-01-01	219
2007-01-01	246
2008-01-01	326
2009-01-01	288
2010-01-01	330
2011-01-01	409
2012-01-01	434
2013-01-01	461
2014-01-01	417
2015-01-01	262
2016-01-01	257