Year	Number of Firms
1992-01-01	7
1997-01-01	12
2002-01-01	12
2003-01-01	14
2004-01-01	13
2005-01-01	23
2006-01-01	14
2007-01-01	14
2008-01-01	16
2009-01-01	14
2010-01-01	18
2011-01-01	24
2012-01-01	20
2013-01-01	24
2014-01-01	26
2015-01-01	30
2016-01-01	31