Quarter	Number of Buildings
1993-01-01	855017333.333333
1993-04-01	997127000.000000
1993-07-01	1154802000.000000
1993-10-01	1006939000.000000
1994-01-01	922065000.000000
1994-04-01	986977666.666667
1994-07-01	1151400000.000000
1994-10-01	1221097666.666670
1995-01-01	1115450333.333330
1995-04-01	1196045333.333330
1995-07-01	1294239666.666670
1995-10-01	1166680666.666670
1996-01-01	1130109666.666670
1996-04-01	1316187000.000000
1996-07-01	1259047000.000000
1996-10-01	1353846333.333330
1997-01-01	1059659333.333330
1997-04-01	1151865000.000000
1997-07-01	1151219666.666670
1997-10-01	1256639666.666670
1998-01-01	1203053333.333330
1998-04-01	1200753666.666670
1998-07-01	1242435333.333330
1998-10-01	1104918666.666670
1999-01-01	868162666.666667
1999-04-01	893331000.000000
1999-07-01	1060156000.000000
1999-10-01	892767333.333333
2000-01-01	773719000.000000
2000-04-01	859346333.333333
2000-07-01	983254333.333333
2000-10-01	993058666.666667
2001-01-01	1101622333.333330
2001-04-01	928553333.333333
2001-07-01	865931333.333333
2001-10-01	1153266666.666670
2002-01-01	1158315333.333330
2002-04-01	1246878333.333330
2002-07-01	1405306000.000000
2002-10-01	1508524000.000000
2003-01-01	1191960666.666670
2003-04-01	1218200000.000000
2003-07-01	1852007000.000000
2003-10-01	1487188333.333330
2004-01-01	1245700666.666670
2004-04-01	1812878000.000000
2004-07-01	2150106000.000000
2004-10-01	2752729333.333330
2005-01-01	1801858666.666670
2005-04-01	2340768666.666670
2005-07-01	2974334333.333330
2005-10-01	3449539666.666670
2006-01-01	2490165666.666670
2006-04-01	2894638333.333330
2006-07-01	3387283666.666670
2006-10-01	3554617666.666670
2007-01-01	2776738000.000000
2007-04-01	3556334333.333330
2007-07-01	3485936666.666670
2007-10-01	3309347000.000000
2008-01-01	2635418333.333330
2008-04-01	2901710333.333330
2008-07-01	3331862333.333330
2008-10-01	3219862000.000000
2009-01-01	2430241000.000000
2009-04-01	1988383333.333330
2009-07-01	2206715000.000000
2009-10-01	2577336666.666670
2010-01-01	1507866333.333330
2010-04-01	1972233666.666670
2010-07-01	1766205000.000000
2010-10-01	1928607333.333330
2011-01-01	1557727000.000000
2011-04-01	1705683000.000000
2011-07-01	1716058666.666670
2011-10-01	2025236333.333330
2012-01-01	1619561333.333330
2012-04-01	1598258000.000000
2012-07-01	1910414666.666670
2012-10-01	2007464666.666670
2013-01-01	1720419000.000000
2013-04-01	1841142000.000000
2013-07-01	2094459333.333330
2013-10-01	1928219333.333330