Year	Number of Firms
1992-01-01	6
1997-01-01	15
2002-01-01	12
2003-01-01	12
2004-01-01	15
2005-01-01	16
2006-01-01	15
2007-01-01	22
2008-01-01	29
2009-01-01	24
2010-01-01	24
2011-01-01	35
2012-01-01	31
2013-01-01	31
2014-01-01	26
2015-01-01	28
2016-01-01	32