Year	Number of Firms
1992-01-01	16
1997-01-01	31
2002-01-01	23
2003-01-01	26
2004-01-01	29
2005-01-01	50
2006-01-01	34
2007-01-01	45
2008-01-01	45
2009-01-01	32
2010-01-01	36
2011-01-01	23
2012-01-01	32
2013-01-01	32
2014-01-01	33
2015-01-01	28
2016-01-01	37