Year	Number of Firms
1992-01-01	43
1997-01-01	87
2002-01-01	115
2003-01-01	122
2004-01-01	142
2005-01-01	140
2006-01-01	170
2007-01-01	191
2008-01-01	195
2009-01-01	189
2010-01-01	220
2011-01-01	204
2012-01-01	232
2013-01-01	233
2014-01-01	229
2015-01-01	213
2016-01-01	258