Year	Number of Firms
1992-01-01	9
1997-01-01	12
2002-01-01	16
2003-01-01	11
2004-01-01	10
2005-01-01	10
2006-01-01	25
2007-01-01	17
2008-01-01	23
2009-01-01	22
2010-01-01	25
2011-01-01	22
2012-01-01	22
2013-01-01	29
2014-01-01	27
2015-01-01	31
2016-01-01	31