Year	Number of Firms
1992-01-01	176
1997-01-01	208
2002-01-01	211
2003-01-01	198
2004-01-01	223
2005-01-01	203
2006-01-01	215
2007-01-01	240
2008-01-01	265
2009-01-01	219
2010-01-01	247
2011-01-01	252
2012-01-01	242
2013-01-01	234
2014-01-01	234
2015-01-01	221
2016-01-01	227