Year	Number of Firms
1992-01-01	19
1997-01-01	18
2002-01-01	16
2003-01-01	19
2004-01-01	22
2005-01-01	29
2006-01-01	33
2007-01-01	28
2008-01-01	33
2009-01-01	29
2010-01-01	40
2011-01-01	41
2012-01-01	36
2013-01-01	36
2014-01-01	43
2015-01-01	38
2016-01-01	42