Year	Number of Firms
1992-01-01	5
1997-01-01	8
2002-01-01	15
2003-01-01	10
2004-01-01	19
2005-01-01	13
2006-01-01	23
2007-01-01	23
2008-01-01	32
2009-01-01	29
2010-01-01	23
2011-01-01	28
2012-01-01	26
2013-01-01	25
2014-01-01	30
2015-01-01	25
2016-01-01	28