Year	Number of Firms
1992-01-01	13
1997-01-01	17
2002-01-01	20
2003-01-01	15
2004-01-01	12
2005-01-01	18
2006-01-01	14
2007-01-01	20
2008-01-01	28
2009-01-01	20
2010-01-01	25
2011-01-01	32
2012-01-01	37
2013-01-01	34
2014-01-01	28
2015-01-01	34
2016-01-01	34