yearmonth	created	closed
2005-11-01	75	25
2005-12-01	12	15
2006-01-01	26	16
2006-02-01	21	11
2006-03-01	15	28
2006-04-01	100	52
2006-05-01	45	37
2006-06-01	180	159
2006-07-01	43	45
2006-08-01	73	72
2006-09-01	57	43
2006-10-01	37	40
2006-11-01	21	19
2006-12-01	31	31
2007-01-01	23	38
2007-02-01	172	76
2007-03-01	254	179
2007-04-01	58	48
2007-05-01	151	150
2007-06-01	144	133
2007-07-01	62	51
2007-08-01	54	48
2007-09-01	67	81
2007-10-01	88	105
2007-11-01	53	62
2007-12-01	81	39
2008-01-01	100	63
2008-02-01	173	164
2008-03-01	165	158
2008-04-01	152	115
2008-05-01	135	111
2008-06-01	132	143
2008-07-01	107	101
2008-08-01	77	80
2008-09-01	107	101
2008-10-01	273	189
2008-11-01	199	208
2008-12-01	86	79
2009-01-01	136	105
2009-02-01	293	185
2009-03-01	201	168
2009-04-01	132	117
2009-05-01	175	182
2009-06-01	245	237
2009-07-01	103	100
2009-08-01	223	172
2009-09-01	335	196
2009-10-01	266	208
2009-11-01	223	207
2009-12-01	147	135
2010-01-01	239	148
2010-02-01	218	266
2010-03-01	380	375
2010-04-01	189	194
2010-05-01	207	156
2010-06-01	210	229
2010-07-01	120	115
2010-08-01	200	186
2010-09-01	280	239
2010-10-01	147	164
2010-11-01	216	200
2010-12-01	145	122
2011-01-01	187	231
2011-02-01	174	206
2011-03-01	220	143
2011-04-01	180	130
2011-05-01	243	184
2011-06-01	91	78
2011-07-01	154	129
2011-08-01	155	149
2011-09-01	290	179
2011-10-01	182	267
2011-11-01	280	239
2011-12-01	159	133
2012-01-01	197	241
2012-02-01	159	187
2012-03-01	242	230
2012-04-01	228	204
2012-05-01	251	189
2012-06-01	247	208
2012-07-01	229	182
2012-08-01	231	177
2012-09-01	189	152
2012-10-01	324	322
2012-11-01	248	246
2012-12-01	121	122
2013-01-01	195	184
2013-02-01	275	227
2013-03-01	216	177
2013-04-01	207	160
2013-05-01	247	263
2013-06-01	219	171
2013-07-01	155	139
2013-08-01	145	102
2013-09-01	288	233
2013-10-01	414	281
2013-11-01	285	341
2013-12-01	198	206
2014-01-01	458	303
2014-02-01	383	340
2014-03-01	456	348
2014-04-01	337	232
2014-05-01	435	453
2014-06-01	359	222
2014-07-01	281	219
2014-08-01	319	299
2014-09-01	238	193