Year	Number of Firms
1992-01-01	7
1997-01-01	22
2002-01-01	22
2003-01-01	13
2004-01-01	23
2005-01-01	20
2006-01-01	21
2007-01-01	19
2008-01-01	28
2009-01-01	17
2010-01-01	31
2011-01-01	30
2012-01-01	35
2013-01-01	24
2014-01-01	27
2015-01-01	36
2016-01-01	41