Year	Number of Firms
1992-01-01	3
1997-01-01	5
2002-01-01	6
2003-01-01	6
2004-01-01	5
2005-01-01	3
2006-01-01	17
2007-01-01	16
2008-01-01	34
2009-01-01	24
2010-01-01	19
2011-01-01	22
2012-01-01	18
2013-01-01	25
2014-01-01	17
2015-01-01	15
2016-01-01	15