Year	Number of Firms
1992-01-01	128
1997-01-01	188
2002-01-01	160
2003-01-01	139
2004-01-01	153
2005-01-01	147
2006-01-01	133
2007-01-01	144
2008-01-01	171
2009-01-01	162
2010-01-01	172
2011-01-01	189
2012-01-01	182
2013-01-01	183
2014-01-01	191
2015-01-01	187
2016-01-01	185