Year	Number of Firms
1992-01-01	17
1997-01-01	15
2002-01-01	22
2003-01-01	27
2004-01-01	26
2005-01-01	19
2006-01-01	25
2007-01-01	26
2008-01-01	25
2009-01-01	28
2010-01-01	25
2011-01-01	19
2012-01-01	24
2013-01-01	27
2014-01-01	24
2015-01-01	26
2016-01-01	26