Year	Number of Firms
1992-01-01	58
1997-01-01	111
2002-01-01	132
2003-01-01	127
2004-01-01	151
2005-01-01	145
2006-01-01	159
2007-01-01	147
2008-01-01	170
2009-01-01	156
2010-01-01	155
2011-01-01	167
2012-01-01	154
2013-01-01	154
2014-01-01	169
2015-01-01	174
2016-01-01	177