Year	Number of Firms
1992-01-01	123
1997-01-01	168
2002-01-01	177
2003-01-01	177
2004-01-01	196
2005-01-01	208
2006-01-01	229
2007-01-01	243
2008-01-01	234
2009-01-01	227
2010-01-01	225
2011-01-01	240
2012-01-01	232
2013-01-01	225
2014-01-01	243
2015-01-01	232
2016-01-01	237