Year	Number of Firms
1992-01-01	139
1997-01-01	145
2002-01-01	142
2003-01-01	168
2004-01-01	186
2005-01-01	193
2006-01-01	196
2007-01-01	227
2008-01-01	243
2009-01-01	239
2010-01-01	214
2011-01-01	251
2012-01-01	248
2013-01-01	257
2014-01-01	237
2015-01-01	243
2016-01-01	218