Year	Number of Firms
1992-01-01	67
1997-01-01	115
2002-01-01	131
2003-01-01	155
2004-01-01	169
2005-01-01	162
2006-01-01	178
2007-01-01	186
2008-01-01	193
2009-01-01	171
2010-01-01	209
2011-01-01	208
2012-01-01	206
2013-01-01	208
2014-01-01	222
2015-01-01	212
2016-01-01	222