Year	Number of Firms
1992-01-01	71
1997-01-01	131
2002-01-01	106
2003-01-01	122
2004-01-01	130
2005-01-01	157
2006-01-01	149
2007-01-01	164
2008-01-01	189
2009-01-01	186
2010-01-01	203
2011-01-01	223
2012-01-01	234
2013-01-01	214
2014-01-01	233
2015-01-01	232
2016-01-01	231