Year	Number of Firms
1992-01-01	4
1997-01-01	11
2002-01-01	8
2003-01-01	12
2004-01-01	12
2005-01-01	15
2006-01-01	12
2007-01-01	14
2008-01-01	22
2009-01-01	16
2010-01-01	18
2011-01-01	29
2012-01-01	22
2013-01-01	22
2014-01-01	26
2015-01-01	26
2016-01-01	23