Year	Number of Firms
1992-01-01	7
1997-01-01	9
2002-01-01	15
2003-01-01	18
2004-01-01	15
2005-01-01	24
2006-01-01	21
2007-01-01	15
2008-01-01	22
2009-01-01	29
2010-01-01	25
2011-01-01	35
2012-01-01	39
2013-01-01	35
2014-01-01	36
2015-01-01	32
2016-01-01	37