Year	Number of Firms
1992-01-01	14
1997-01-01	19
2002-01-01	11
2003-01-01	11
2004-01-01	16
2005-01-01	10
2006-01-01	7
2007-01-01	13
2008-01-01	11
2009-01-01	21
2010-01-01	16
2011-01-01	16
2012-01-01	12
2013-01-01	16
2014-01-01	19
2015-01-01	17
2016-01-01	22