Year	Number of Firms
1992-01-01	159
1997-01-01	238
2002-01-01	260
2003-01-01	230
2004-01-01	268
2005-01-01	286
2006-01-01	291
2007-01-01	337
2008-01-01	365
2009-01-01	348
2010-01-01	375
2011-01-01	395
2012-01-01	382
2013-01-01	360
2014-01-01	380
2015-01-01	370
2016-01-01	371