Year	Number of Firms
1992-01-01	108
1997-01-01	196
2002-01-01	240
2003-01-01	252
2004-01-01	297
2005-01-01	331
2006-01-01	343
2007-01-01	368
2008-01-01	399
2009-01-01	443
2010-01-01	491
2011-01-01	515
2012-01-01	492
2013-01-01	490
2014-01-01	550
2015-01-01	528
2016-01-01	522