Year	Number of Firms
1992-01-01	37
1997-01-01	85
2002-01-01	130
2003-01-01	138
2004-01-01	143
2005-01-01	183
2006-01-01	164
2007-01-01	211
2008-01-01	251
2009-01-01	260
2010-01-01	278
2011-01-01	302
2012-01-01	332
2013-01-01	369
2014-01-01	374
2015-01-01	381
2016-01-01	471