Year	Number of Firms
1992-01-01	19
1997-01-01	23
2002-01-01	22
2003-01-01	26
2004-01-01	29
2005-01-01	42
2006-01-01	29
2007-01-01	47
2008-01-01	51
2009-01-01	66
2010-01-01	37
2011-01-01	48
2012-01-01	40
2013-01-01	40
2014-01-01	58
2015-01-01	55
2016-01-01	43
