Year	Number of Firms
1992-01-01	10
1997-01-01	12
2002-01-01	16
2003-01-01	20
2004-01-01	18
2005-01-01	15
2006-01-01	24
2007-01-01	31
2008-01-01	37
2009-01-01	39
2010-01-01	31
2011-01-01	33
2012-01-01	33
2013-01-01	26
2014-01-01	33
2015-01-01	27
2016-01-01	28