Year	Number of Firms
1992-01-01	16
1997-01-01	28
2002-01-01	15
2003-01-01	19
2004-01-01	15
2005-01-01	12
2006-01-01	15
2007-01-01	17
2008-01-01	24
2009-01-01	22
2010-01-01	24
2011-01-01	23
2012-01-01	18
2013-01-01	38
2014-01-01	31
2015-01-01	48
2016-01-01	46