Year	Number of Firms
1992-01-01	51
1997-01-01	96
2002-01-01	118
2003-01-01	124
2004-01-01	155
2005-01-01	163
2006-01-01	199
2007-01-01	220
2008-01-01	214
2009-01-01	210
2010-01-01	242
2011-01-01	257
2012-01-01	234
2013-01-01	237
2014-01-01	266
2015-01-01	246
2016-01-01	251