Year	Number of Firms
1992-01-01	97
1997-01-01	146
2002-01-01	146
2003-01-01	147
2004-01-01	166
2005-01-01	153
2006-01-01	177
2007-01-01	206
2008-01-01	227
2009-01-01	188
2010-01-01	199
2011-01-01	227
2012-01-01	198
2013-01-01	208
2014-01-01	223
2015-01-01	190
2016-01-01	187