Year	Number of Firms
1992-01-01	11
1997-01-01	15
2002-01-01	16
2003-01-01	13
2004-01-01	15
2005-01-01	11
2006-01-01	23
2007-01-01	26
2008-01-01	31
2009-01-01	36
2010-01-01	43
2011-01-01	44
2012-01-01	37
2013-01-01	44
2014-01-01	39
2015-01-01	33
2016-01-01	31