Year	Number of Firms
1992-01-01	29
1997-01-01	30
2002-01-01	45
2003-01-01	51
2004-01-01	61
2005-01-01	63
2006-01-01	68
2007-01-01	92
2008-01-01	115
2009-01-01	149
2010-01-01	175
2011-01-01	236
2012-01-01	260
2013-01-01	216
2014-01-01	151
2015-01-01	163
2016-01-01	159