Year	Number of Firms
1992-01-01	65
1997-01-01	131
2002-01-01	130
2003-01-01	137
2004-01-01	144
2005-01-01	148
2006-01-01	160
2007-01-01	196
2008-01-01	271
2009-01-01	265
2010-01-01	269
2011-01-01	230
2012-01-01	247
2013-01-01	248
2014-01-01	257
2015-01-01	266
2016-01-01	223