Year	Number of Firms
1992-01-01	10
1997-01-01	21
2002-01-01	16
2003-01-01	17
2004-01-01	30
2005-01-01	25
2006-01-01	25
2007-01-01	33
2008-01-01	38
2009-01-01	24
2010-01-01	27
2011-01-01	31
2012-01-01	25
2013-01-01	30
2014-01-01	27
2015-01-01	25
2016-01-01	27