Year	Number of Firms
1992-01-01	108
1997-01-01	133
2002-01-01	131
2003-01-01	131
2004-01-01	125
2005-01-01	140
2006-01-01	148
2007-01-01	169
2008-01-01	159
2009-01-01	138
2010-01-01	154
2011-01-01	164
2012-01-01	153
2013-01-01	159
2014-01-01	156
2015-01-01	156
2016-01-01	152