Year	Number of Firms
1992-01-01	138
1997-01-01	169
2002-01-01	194
2003-01-01	208
2004-01-01	231
2005-01-01	245
2006-01-01	241
2007-01-01	252
2008-01-01	243
2009-01-01	252
2010-01-01	265
2011-01-01	285
2012-01-01	270
2013-01-01	275
2014-01-01	279
2015-01-01	276
2016-01-01	254