Year	Number of Firms
1992-01-01	14
1997-01-01	11
2002-01-01	18
2003-01-01	15
2004-01-01	22
2005-01-01	17
2006-01-01	20
2007-01-01	22
2008-01-01	23
2009-01-01	33
2010-01-01	27
2011-01-01	27
2012-01-01	33
2013-01-01	29
2014-01-01	25
2015-01-01	31
2016-01-01	27