Year	Number of Firms
1992-01-01	34
1997-01-01	60
2002-01-01	100
2003-01-01	100
2004-01-01	162
2005-01-01	207
2006-01-01	244
2007-01-01	260
2008-01-01	374
2009-01-01	455
2010-01-01	520
2011-01-01	454
2012-01-01	542
2013-01-01	523
2014-01-01	483
2015-01-01	419
2016-01-01	440