Year	Number of Firms
1992-01-01	20
1997-01-01	58
2002-01-01	68
2003-01-01	80
2004-01-01	89
2005-01-01	123
2006-01-01	110
2007-01-01	194
2008-01-01	279
2009-01-01	134
2010-01-01	154
2011-01-01	189
2012-01-01	227
2013-01-01	237
2014-01-01	227
2015-01-01	186
2016-01-01	171