Year	Number of Firms
1992-01-01	18
1997-01-01	74
2002-01-01	81
2003-01-01	96
2004-01-01	133
2005-01-01	127
2006-01-01	133
2007-01-01	140
2008-01-01	155
2009-01-01	129
2010-01-01	164
2011-01-01	209
2012-01-01	220
2013-01-01	239
2014-01-01	215
2015-01-01	195
2016-01-01	177