Year	Number of Firms
1992-01-01	162
1997-01-01	169
2002-01-01	161
2003-01-01	159
2004-01-01	164
2005-01-01	148
2006-01-01	148
2007-01-01	158
2008-01-01	160
2009-01-01	168
2010-01-01	143
2011-01-01	149
2012-01-01	160
2013-01-01	152
2014-01-01	158
2015-01-01	153
2016-01-01	137