Year	Number of Firms
1992-01-01	54
1997-01-01	104
2002-01-01	148
2003-01-01	131
2004-01-01	143
2005-01-01	167
2006-01-01	158
2007-01-01	155
2008-01-01	186
2009-01-01	192
2010-01-01	218
2011-01-01	213
2012-01-01	230
2013-01-01	239
2014-01-01	228
2015-01-01	235
2016-01-01	226