Year	Number of Firms
1992-01-01	267
1997-01-01	372
2002-01-01	387
2003-01-01	405
2004-01-01	413
2005-01-01	413
2006-01-01	460
2007-01-01	481
2008-01-01	511
2009-01-01	513
2010-01-01	549
2011-01-01	586
2012-01-01	606
2013-01-01	604
2014-01-01	633
2015-01-01	580
2016-01-01	547