Year	Number of Firms
1992-01-01	7
1997-01-01	13
2002-01-01	19
2003-01-01	22
2004-01-01	20
2005-01-01	12
2006-01-01	15
2007-01-01	21
2008-01-01	28
2009-01-01	26
2010-01-01	30
2011-01-01	28
2012-01-01	20
2013-01-01	18
2014-01-01	15
2015-01-01	11
2016-01-01	12