Year	Number of Firms
1992-01-01	77
1997-01-01	129
2002-01-01	107
2003-01-01	135
2004-01-01	164
2005-01-01	171
2006-01-01	194
2007-01-01	216
2008-01-01	221
2009-01-01	192
2010-01-01	190
2011-01-01	228
2012-01-01	235
2013-01-01	235
2014-01-01	231
2015-01-01	232
2016-01-01	199