Coal : Production of Coal in Opencast and Underground Mines


Coal : Production of Coal in Opencast and Underground Mines
						('000 tonnes)
						Output per manshift (Tonnes)
Year	Open cast mechanical Production	Open cast manual Production	Open cast Production	Under ground Production	Total Production	Open cast mines	Under ground mines	All mines
1986–87	82458	6468	89828	75858	165686	2.66	0.68	1.14
1987–88	102370	4840	107210	72640	181285	2.75	0.56	1.08
1988–89	110560	7500	118060	76320	196230	3.07	0.6	1.18
1989–90	123030	7020	130050	70860	203361	3.2	0.55	1.21
1990–91	127715	6279	135737	75875	214057	3.5	0.8	1.18
1991–92	142723	4729	149990	79326	232818	3.74	0.73	1.33
1992–93	150495	3887	156922	81566	241995	3.88	0.71	1.39
1993–94	156596	3714	168897	77247	248687	4.13	0.74	1.43
1994–95	165045	2713	176670	77834	257770	4.66	0.79	1.61
1995–96	186501	16001	190309	273415	5.01	6.1	0.83	1.77
1996–97	203699	1256	209650	76430	289321	5.38	0.79	1.84
1997–98	226858	1283	228141	69028	300403	4.97	0.61	1.45
1998–99	223108	1401	224509	67761	296508	5.41	0.63	1.99
1999–00	232200	5076	237276	66827	304103	5.65	0.63
Note:Data for Meghalaya could not be classified & hence excluded.
Source : CMIE, April 2001