Year	Number of Firms
1992-01-01	10
1997-01-01	17
2002-01-01	11
2003-01-01	14
2004-01-01	14
2005-01-01	14
2006-01-01	17
2007-01-01	23
2008-01-01	30
2009-01-01	27
2010-01-01	21
2011-01-01	20
2012-01-01	26
2013-01-01	28
2014-01-01	30
2015-01-01	24
2016-01-01	28