Year	Number of Firms
1992-01-01	5
1997-01-01	13
2002-01-01	18
2003-01-01	18
2004-01-01	25
2005-01-01	19
2006-01-01	27
2007-01-01	24
2008-01-01	31
2009-01-01	31
2010-01-01	29
2011-01-01	16
2012-01-01	33
2013-01-01	27
2014-01-01	36
2015-01-01	23
2016-01-01	31