Year	Number of Firms
1992-01-01	133
1997-01-01	222
2002-01-01	199
2003-01-01	161
2004-01-01	180
2005-01-01	210
2006-01-01	264
2007-01-01	293
2008-01-01	256
2009-01-01	306
2010-01-01	297
2011-01-01	302
2012-01-01	300
2013-01-01	305
2014-01-01	311
2015-01-01	331
2016-01-01	327