Year	Number of Firms
1992-01-01	143
1997-01-01	148
2002-01-01	160
2003-01-01	142
2004-01-01	159
2005-01-01	170
2006-01-01	181
2007-01-01	200
2008-01-01	199
2009-01-01	196
2010-01-01	201
2011-01-01	252
2012-01-01	275
2013-01-01	274
2014-01-01	283
2015-01-01	258
2016-01-01	248