Year	Number of Firms
1992-01-01	130
1997-01-01	183
2002-01-01	223
2003-01-01	235
2004-01-01	233
2005-01-01	222
2006-01-01	202
2007-01-01	222
2008-01-01	255
2009-01-01	242
2010-01-01	240
2011-01-01	252
2012-01-01	243
2013-01-01	262
2014-01-01	247
2015-01-01	261
2016-01-01	280