Year	Number of Firms
1992-01-01	19
1997-01-01	22
2002-01-01	21
2003-01-01	19
2004-01-01	24
2005-01-01	30
2006-01-01	28
2007-01-01	27
2008-01-01	41
2009-01-01	25
2010-01-01	36
2011-01-01	14
2012-01-01	16
2013-01-01	19
2014-01-01	23
2015-01-01	28
2016-01-01	20