Year	Number of Firms
1992-01-01	146
1997-01-01	244
2002-01-01	252
2003-01-01	247
2004-01-01	234
2005-01-01	250
2006-01-01	252
2007-01-01	256
2008-01-01	293
2009-01-01	312
2010-01-01	306
2011-01-01	327
2012-01-01	341
2013-01-01	370
2014-01-01	336
2015-01-01	352
2016-01-01	345