Year	Number of Firms
1992-01-01	160
1997-01-01	193
2002-01-01	199
2003-01-01	220
2004-01-01	217
2005-01-01	228
2006-01-01	247
2007-01-01	258
2008-01-01	248
2009-01-01	263
2010-01-01	265
2011-01-01	306
2012-01-01	246
2013-01-01	236
2014-01-01	249
2015-01-01	227
2016-01-01	237