Year	Number of Firms
1992-01-01	31
1997-01-01	52
2002-01-01	78
2003-01-01	78
2004-01-01	103
2005-01-01	105
2006-01-01	117
2007-01-01	146
2008-01-01	169
2009-01-01	151
2010-01-01	171
2011-01-01	208
2012-01-01	202
2013-01-01	193
2014-01-01	178
2015-01-01	164
2016-01-01	172