Year	Number of Firms
1992-01-01	83
1997-01-01	126
2002-01-01	146
2003-01-01	157
2004-01-01	185
2005-01-01	185
2006-01-01	229
2007-01-01	246
2008-01-01	235
2009-01-01	226
2010-01-01	270
2011-01-01	300
2012-01-01	335
2013-01-01	332
2014-01-01	352
2015-01-01	353
2016-01-01	355