Year	Number of Firms
1992-01-01	79
1997-01-01	114
2002-01-01	153
2003-01-01	146
2004-01-01	169
2005-01-01	191
2006-01-01	215
2007-01-01	260
2008-01-01	322
2009-01-01	328
2010-01-01	314
2011-01-01	320
2012-01-01	302
2013-01-01	306
2014-01-01	334
2015-01-01	322
2016-01-01	325