Year	Number of Firms
1992-01-01	149
1997-01-01	226
2002-01-01	238
2003-01-01	256
2004-01-01	309
2005-01-01	290
2006-01-01	325
2007-01-01	328
2008-01-01	329
2009-01-01	328
2010-01-01	333
2011-01-01	370
2012-01-01	358
2013-01-01	353
2014-01-01	341
2015-01-01	360
2016-01-01	359