Year	Number of Firms
1992-01-01	15
1997-01-01	13
2002-01-01	24
2003-01-01	18
2004-01-01	22
2005-01-01	13
2006-01-01	19
2007-01-01	30
2008-01-01	28
2009-01-01	26
2010-01-01	39
2011-01-01	31
2012-01-01	30
2013-01-01	35
2014-01-01	32
2015-01-01	31
2016-01-01	33