Year	Number of Firms
1992-01-01	148
1997-01-01	188
2002-01-01	177
2003-01-01	194
2004-01-01	199
2005-01-01	180
2006-01-01	218
2007-01-01	242
2008-01-01	259
2009-01-01	279
2010-01-01	287
2011-01-01	304
2012-01-01	337
2013-01-01	328
2014-01-01	314
2015-01-01	323
2016-01-01	331