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