econometrics/Week8/merge_by_year.csv

1	year	resset_n	csmar_n	matched_n	complete_n	resset_only	csmar_only	missing_roa	missing_roe	pct_resset_matched	pct_csmar_matched
2	1990	5	0	0	0	5	0	0	1	0.000000
3	1991	5	0	0	0	5	0	0	5	0.000000
4	1992	36	0	0	0	36	0	0	22	0.000000
5	1993	277	0	0	0	277	0	3	0	0.000000
6	1994	511	0	0	0	511	0	1	0	0.000000
7	1995	727	0	0	0	727	0	0	0	0.000000
8	1996	813	0	0	0	813	0	1	0	0.000000
9	1997	918	0	0	0	918	0	1	0	0.000000
10	1998	987	0	0	0	987	0	1	2	0.000000
11	1999	1088	949	782	776	306	167	5	9	71.875000	82.402529
12	2000	1161	1108	924	918	237	184	0	10	79.586563	83.393502
13	2001	1258	1163	977	969	281	186	0	17	77.662957	84.006879
14	2002	1270	1229	1045	1032	225	184	0	27	82.283465	85.028478
15	2003	1354	1288	1107	1090	247	181	0	37	81.757755	85.947205
16	2004	1470	1378	1204	1177	266	174	8	53	81.904762	87.373004
17	2005	1522	1375	1217	1169	305	158	6	74	79.960578	88.509091
18	2006	1690	1456	1292	1235	398	164	3	82	76.449704	88.736264
19	2007	2051	1572	1396	1343	655	176	6	75	68.064359	88.804071
20	2008	2292	1626	1447	1401	845	179	5	65	63.132635	88.991390
21	2009	2441	1774	1593	1539	848	181	9	70	65.260139	89.797069
22	2010	2580	2129	1941	1896	639	188	7	64	75.232558	91.169563
23	2011	3209	2363	2171	2135	1038	192	2	59	67.653475	91.874736
24	2012	3554	2492	2297	2276	1257	195	9	41	64.631401	92.174960
25	2013	2841	2536	2342	2338	499	194	2	5	82.435762	92.350158
26	2014	837	2652	836	828	1	1816	0	8	99.880526	31.523379