Year	Number of Firms
1992-01-01	87
1997-01-01	137
2002-01-01	175
2003-01-01	172
2004-01-01	171
2005-01-01	173
2006-01-01	164
2007-01-01	191
2008-01-01	206
2009-01-01	170
2010-01-01	173
2011-01-01	180
2012-01-01	203
2013-01-01	217
2014-01-01	198
2015-01-01	183
2016-01-01	175