Year	Number of Firms
1992-01-01	192
1997-01-01	322
2002-01-01	358
2003-01-01	346
2004-01-01	346
2005-01-01	393
2006-01-01	371
2007-01-01	373
2008-01-01	424
2009-01-01	372
2010-01-01	418
2011-01-01	425
2012-01-01	405
2013-01-01	423
2014-01-01	453
2015-01-01	418
2016-01-01	421