Year	Number of Firms
1992-01-01	1
2002-01-01	4
2003-01-01	7
2004-01-01	6
2005-01-01	12
2006-01-01	11
2007-01-01	13
2008-01-01	15
2009-01-01	20
2010-01-01	28
2011-01-01	32
2012-01-01	32
2013-01-01	25
2014-01-01	21
2015-01-01	15
2016-01-01	17