Year	Number of Firms
1992-01-01	6
1997-01-01	14
2002-01-01	6
2003-01-01	9
2004-01-01	17
2005-01-01	15
2006-01-01	17
2007-01-01	23
2008-01-01	26
2009-01-01	21
2010-01-01	31
2011-01-01	26
2012-01-01	36
2013-01-01	24
2014-01-01	37
2015-01-01	27
2016-01-01	24