Year	Number of Firms
1992-01-01	5
1997-01-01	11
2002-01-01	5
2003-01-01	7
2004-01-01	15
2005-01-01	20
2006-01-01	11
2007-01-01	16
2008-01-01	19
2009-01-01	17
2010-01-01	19
2011-01-01	17
2012-01-01	26
2013-01-01	25
2014-01-01	31
2015-01-01	23
2016-01-01	30