Year	Number of Firms
1992-01-01	103
1997-01-01	146
2002-01-01	138
2003-01-01	129
2004-01-01	133
2005-01-01	131
2006-01-01	145
2007-01-01	167
2008-01-01	161
2009-01-01	164
2010-01-01	158
2011-01-01	179
2012-01-01	176
2013-01-01	174
2014-01-01	171
2015-01-01	152
2016-01-01	168