Year	Number of Firms
1992-01-01	115
1997-01-01	154
2002-01-01	199
2003-01-01	204
2004-01-01	227
2005-01-01	246
2006-01-01	249
2007-01-01	272
2008-01-01	324
2009-01-01	363
2010-01-01	385
2011-01-01	400
2012-01-01	385
2013-01-01	454
2014-01-01	481
2015-01-01	473
2016-01-01	450