Year	Number of Firms
1992-01-01	1
1997-01-01	8
2002-01-01	5
2003-01-01	12
2004-01-01	10
2005-01-01	21
2006-01-01	20
2007-01-01	21
2008-01-01	23
2009-01-01	11
2010-01-01	18
2011-01-01	22
2012-01-01	24
2013-01-01	31
2014-01-01	28
2015-01-01	20
2016-01-01	24