Year	Number of Firms
1992-01-01	8
1997-01-01	16
2002-01-01	18
2003-01-01	16
2004-01-01	23
2005-01-01	26
2006-01-01	28
2007-01-01	31
2008-01-01	35
2009-01-01	28
2010-01-01	24
2011-01-01	34
2012-01-01	27
2013-01-01	31
2014-01-01	33
2015-01-01	29
2016-01-01	30