Year	Number of Firms
1992-01-01	5
1997-01-01	6
2002-01-01	17
2003-01-01	20
2004-01-01	20
2005-01-01	26
2006-01-01	25
2007-01-01	23
2008-01-01	21
2009-01-01	29
2010-01-01	23
2011-01-01	23
2012-01-01	25
2013-01-01	56
2014-01-01	63
2015-01-01	36
2016-01-01	17