Year	Number of Firms
1992-01-01	11
1997-01-01	13
2002-01-01	20
2003-01-01	14
2004-01-01	14
2005-01-01	15
2006-01-01	19
2007-01-01	31
2008-01-01	30
2009-01-01	23
2010-01-01	22
2011-01-01	20
2012-01-01	33
2013-01-01	31
2014-01-01	30
2015-01-01	29
2016-01-01	29