Year	Number of Firms
1992-01-01	136
1997-01-01	249
2002-01-01	246
2003-01-01	247
2004-01-01	240
2005-01-01	282
2006-01-01	297
2007-01-01	302
2008-01-01	320
2009-01-01	261
2010-01-01	262
2011-01-01	272
2012-01-01	236
2013-01-01	267
2014-01-01	270
2015-01-01	289
2016-01-01	275