Year	Number of Firms
1992-01-01	6
1997-01-01	7
2002-01-01	10
2003-01-01	6
2004-01-01	11
2005-01-01	12
2006-01-01	12
2007-01-01	17
2008-01-01	31
2009-01-01	23
2010-01-01	24
2011-01-01	23
2012-01-01	37
2013-01-01	30
2014-01-01	30
2015-01-01	35
2016-01-01	37