Year	Number of Firms
1992-01-01	151
1997-01-01	216
2002-01-01	217
2003-01-01	220
2004-01-01	233
2005-01-01	265
2006-01-01	263
2007-01-01	267
2008-01-01	325
2009-01-01	309
2010-01-01	352
2011-01-01	381
2012-01-01	387
2013-01-01	386
2014-01-01	379
2015-01-01	358
2016-01-01	347