Year	Number of Firms
1992-01-01	243
1997-01-01	266
2002-01-01	247
2003-01-01	242
2004-01-01	264
2005-01-01	263
2006-01-01	281
2007-01-01	325
2008-01-01	362
2009-01-01	332
2010-01-01	307
2011-01-01	315
2012-01-01	280
2013-01-01	295
2014-01-01	295
2015-01-01	272
2016-01-01	301