Year	Number of Firms
1992-01-01	1
1997-01-01	42
2002-01-01	90
2003-01-01	127
2004-01-01	158
2005-01-01	172
2006-01-01	175
2007-01-01	214
2008-01-01	256
2009-01-01	245
2010-01-01	298
2011-01-01	329
2012-01-01	320
2013-01-01	312
2014-01-01	351
2015-01-01	348
2016-01-01	395