Year	Number of Firms
1992-01-01	48
1997-01-01	66
2002-01-01	73
2003-01-01	67
2004-01-01	108
2005-01-01	116
2006-01-01	121
2007-01-01	160
2008-01-01	190
2009-01-01	210
2010-01-01	209
2011-01-01	235
2012-01-01	207
2013-01-01	227
2014-01-01	233
2015-01-01	229
2016-01-01	130