Year	Number of Firms
1992-01-01	7
1997-01-01	8
2002-01-01	24
2003-01-01	22
2004-01-01	16
2005-01-01	15
2006-01-01	22
2007-01-01	21
2008-01-01	31
2009-01-01	34
2010-01-01	31
2011-01-01	20
2012-01-01	30
2013-01-01	24
2014-01-01	16
2015-01-01	18
2016-01-01	16