Year	Number of Firms
1992-01-01	25
1997-01-01	90
2002-01-01	174
2003-01-01	214
2004-01-01	229
2005-01-01	269
2006-01-01	298
2007-01-01	329
2008-01-01	322
2009-01-01	373
2010-01-01	385
2011-01-01	412
2012-01-01	391
2013-01-01	408
2014-01-01	439
2015-01-01	439
2016-01-01	452