Year	Number of Firms
1992-01-01	7
1997-01-01	16
2002-01-01	28
2003-01-01	21
2004-01-01	24
2005-01-01	23
2006-01-01	32
2007-01-01	32
2008-01-01	35
2009-01-01	29
2010-01-01	55
2011-01-01	32
2012-01-01	35
2013-01-01	47
2014-01-01	38
2015-01-01	31
2016-01-01	42