Year	Number of Firms
1992-01-01	41
1997-01-01	91
2002-01-01	111
2003-01-01	122
2004-01-01	195
2005-01-01	217
2006-01-01	251
2007-01-01	290
2008-01-01	459
2009-01-01	610
2010-01-01	697
2011-01-01	581
2012-01-01	516
2013-01-01	508
2014-01-01	476
2015-01-01	483
2016-01-01	465