Year	Number of Firms
1992-01-01	81
1997-01-01	74
2002-01-01	139
2003-01-01	166
2004-01-01	178
2005-01-01	209
2006-01-01	185
2007-01-01	185
2008-01-01	215
2009-01-01	199
2010-01-01	199
2011-01-01	220
2012-01-01	225
2013-01-01	204
2014-01-01	208
2015-01-01	178
2016-01-01	172