Year	Number of Firms
1992-01-01	131
1997-01-01	232
2002-01-01	290
2003-01-01	281
2004-01-01	266
2005-01-01	248
2006-01-01	266
2007-01-01	277
2008-01-01	289
2009-01-01	291
2010-01-01	315
2011-01-01	362
2012-01-01	370
2013-01-01	368
2014-01-01	396
2015-01-01	374
2016-01-01	362