Year	Number of Firms
1992-01-01	37
1997-01-01	70
2002-01-01	98
2003-01-01	120
2004-01-01	143
2005-01-01	152
2006-01-01	160
2007-01-01	181
2008-01-01	197
2009-01-01	188
2010-01-01	180
2011-01-01	188
2012-01-01	225
2013-01-01	210
2014-01-01	208
2015-01-01	228
2016-01-01	192