Year	Number of Firms
1992-01-01	150
1997-01-01	172
2002-01-01	196
2003-01-01	223
2004-01-01	224
2005-01-01	237
2006-01-01	231
2007-01-01	246
2008-01-01	255
2009-01-01	214
2010-01-01	223
2011-01-01	211
2012-01-01	212
2013-01-01	198
2014-01-01	214
2015-01-01	218
2016-01-01	226