Coal : Total Coal Reserves


Coal : Total Coal Reserves
(Million tonnes)
Year	Proved	Indicated	Inferred	All Reserves	Life of Reserves(Years)	% Change in all reserves
1981–82	24775	37014	24639	86428	692
1982–83	335826	42557	28474	106857	818	23.6
1983–84	NA	NA	NA	120105	856	12.4
1984–85	34413	58996	55382	148791	1009	23.9
1985–86	35032	67526	53344	155902	1010	4.8
1986–87	46628	65320	47352	159299	961	2.2
1987–88	49376	70572	50512	170461	940	7
1988–89	75802	68524	50004	176330	899	3.4
1989–90	56294	81377	48374	186044	915	5.5
1990–91	58984	84022	49354	192359	899	3.4
1991–92	61137	85425	46461	196023	842	1.9
1992–93	64853	84913	44011	193777	801	-1.1
1993–94	68047	86079	42766	196892	792	1.6
1994–95	68598	89754	41677	200029	776	1.6
1995–96	70443	89750	41761	201954	739	1
1996–97	72733	89836	42084	204653	707	1.3
1997–98	75118	89079	42042	206240	687	0.8
1998–99	79106	88427	41219	208752	704	1.2
1999–00	82396	89501	39697	211594	696	1.4
Source : CMIE, April 2001