Year	Number of Firms
1992-01-01	2
1997-01-01	8
2002-01-01	19
2003-01-01	16
2004-01-01	16
2005-01-01	21
2006-01-01	25
2007-01-01	31
2008-01-01	35
2009-01-01	31
2010-01-01	33
2011-01-01	31
2012-01-01	39
2013-01-01	45
2014-01-01	36
2015-01-01	32
2016-01-01	41