Year	Number of Firms
1992-01-01	15
1997-01-01	28
2002-01-01	17
2003-01-01	24
2004-01-01	29
2005-01-01	26
2006-01-01	33
2007-01-01	38
2008-01-01	41
2009-01-01	38
2010-01-01	45
2011-01-01	51
2012-01-01	55
2013-01-01	39
2014-01-01	37
2015-01-01	33
2016-01-01	31