Year	Number of Firms
1992-01-01	107
1997-01-01	125
2002-01-01	145
2003-01-01	140
2004-01-01	148
2005-01-01	159
2006-01-01	153
2007-01-01	158
2008-01-01	144
2009-01-01	143
2010-01-01	140
2011-01-01	149
2012-01-01	160
2013-01-01	145
2014-01-01	159
2015-01-01	160
2016-01-01	157