Year	Number of Firms
1992-01-01	53
1997-01-01	136
2002-01-01	119
2003-01-01	129
2004-01-01	115
2005-01-01	124
2006-01-01	124
2007-01-01	140
2008-01-01	142
2009-01-01	173
2010-01-01	173
2011-01-01	199
2012-01-01	222
2013-01-01	207
2014-01-01	224
2015-01-01	210
2016-01-01	198