Year	Number of Firms
1992-01-01	97
1997-01-01	131
2002-01-01	136
2003-01-01	156
2004-01-01	153
2005-01-01	150
2006-01-01	177
2007-01-01	162
2008-01-01	203
2009-01-01	211
2010-01-01	233
2011-01-01	234
2012-01-01	231
2013-01-01	245
2014-01-01	201
2015-01-01	188
2016-01-01	212