Year	Number of Firms
1992-01-01	57
1997-01-01	101
2002-01-01	121
2003-01-01	101
2004-01-01	128
2005-01-01	133
2006-01-01	162
2007-01-01	184
2008-01-01	211
2009-01-01	184
2010-01-01	225
2011-01-01	264
2012-01-01	240
2013-01-01	260
2014-01-01	240
2015-01-01	268
2016-01-01	267