Year	Number of Firms
1992-01-01	11
1997-01-01	20
2002-01-01	15
2003-01-01	16
2004-01-01	13
2005-01-01	19
2006-01-01	31
2007-01-01	27
2008-01-01	31
2009-01-01	31
2010-01-01	31
2011-01-01	39
2012-01-01	33
2013-01-01	30
2014-01-01	38
2015-01-01	37
2016-01-01	29