Year	Number of Firms
1992-01-01	106
1997-01-01	164
2002-01-01	138
2003-01-01	165
2004-01-01	176
2005-01-01	226
2006-01-01	210
2007-01-01	258
2008-01-01	251
2009-01-01	212
2010-01-01	226
2011-01-01	243
2012-01-01	248
2013-01-01	258
2014-01-01	271
2015-01-01	261
2016-01-01	245