Year	Number of Firms
1992-01-01	3
1997-01-01	2
2002-01-01	4
2003-01-01	8
2004-01-01	11
2005-01-01	13
2006-01-01	22
2007-01-01	36
2008-01-01	30
2009-01-01	28
2010-01-01	28
2011-01-01	36
2012-01-01	30
2013-01-01	35
2014-01-01	36
2015-01-01	36
2016-01-01	28