Year	Number of Firms
1992-01-01	12
1997-01-01	10
2002-01-01	18
2003-01-01	13
2004-01-01	13
2005-01-01	18
2006-01-01	22
2007-01-01	25
2008-01-01	17
2009-01-01	28
2010-01-01	32
2011-01-01	35
2012-01-01	31
2013-01-01	37
2014-01-01	27
2015-01-01	29
2016-01-01	29