Year	Number of Firms
1992-01-01	11
1997-01-01	84
2002-01-01	133
2003-01-01	167
2004-01-01	217
2005-01-01	240
2006-01-01	224
2007-01-01	275
2008-01-01	315
2009-01-01	231
2010-01-01	272
2011-01-01	332
2012-01-01	401
2013-01-01	411
2014-01-01	417
2015-01-01	373
2016-01-01	347