Year	Number of Firms
1992-01-01	1
1997-01-01	15
2002-01-01	29
2003-01-01	31
2004-01-01	39
2005-01-01	49
2006-01-01	40
2007-01-01	53
2008-01-01	73
2009-01-01	76
2010-01-01	72
2011-01-01	72
2012-01-01	76
2013-01-01	71
2014-01-01	82
2015-01-01	84
2016-01-01	89