Year	Number of Firms
1992-01-01	50
1997-01-01	99
2002-01-01	133
2003-01-01	132
2004-01-01	167
2005-01-01	162
2006-01-01	179
2007-01-01	190
2008-01-01	200
2009-01-01	181
2010-01-01	199
2011-01-01	208
2012-01-01	219
2013-01-01	229
2014-01-01	226
2015-01-01	231
2016-01-01	212