Year	Number of Firms
1992-01-01	176
1997-01-01	252
2002-01-01	220
2003-01-01	240
2004-01-01	276
2005-01-01	261
2006-01-01	272
2007-01-01	312
2008-01-01	307
2009-01-01	297
2010-01-01	312
2011-01-01	353
2012-01-01	326
2013-01-01	359
2014-01-01	347
2015-01-01	335
2016-01-01	351