Year	Number of Firms
1992-01-01	13
1997-01-01	5
2002-01-01	16
2003-01-01	22
2004-01-01	28
2005-01-01	28
2006-01-01	27
2007-01-01	28
2008-01-01	36
2009-01-01	37
2010-01-01	43
2011-01-01	35
2012-01-01	29
2013-01-01	32
2014-01-01	32
2015-01-01	33
2016-01-01	32