Year	Number of Firms
1992-01-01	90
1997-01-01	147
2002-01-01	189
2003-01-01	184
2004-01-01	207
2005-01-01	200
2006-01-01	222
2007-01-01	228
2008-01-01	235
2009-01-01	244
2010-01-01	266
2011-01-01	277
2012-01-01	310
2013-01-01	308
2014-01-01	310
2015-01-01	301
2016-01-01	307