Year	Number of Firms
1992-01-01	214
1997-01-01	290
2002-01-01	365
2003-01-01	349
2004-01-01	350
2005-01-01	390
2006-01-01	400
2007-01-01	448
2008-01-01	460
2009-01-01	435
2010-01-01	445
2011-01-01	447
2012-01-01	451
2013-01-01	442
2014-01-01	480
2015-01-01	483
2016-01-01	514