Year	Number of Firms
1992-01-01	146
1997-01-01	180
2002-01-01	188
2003-01-01	185
2004-01-01	196
2005-01-01	210
2006-01-01	204
2007-01-01	216
2008-01-01	220
2009-01-01	192
2010-01-01	188
2011-01-01	208
2012-01-01	235
2013-01-01	215
2014-01-01	228
2015-01-01	211
2016-01-01	200