Year	Number of Firms
1992-01-01	84
1997-01-01	145
2002-01-01	161
2003-01-01	162
2004-01-01	164
2005-01-01	179
2006-01-01	163
2007-01-01	188
2008-01-01	207
2009-01-01	193
2010-01-01	200
2011-01-01	225
2012-01-01	216
2013-01-01	242
2014-01-01	239
2015-01-01	244
2016-01-01	220