The summary of the Index of Eight Core Industries (base: 2011-12) is given at the Annexure.

The Eight Core Industries comprise 40.27 per cent of the weight of items included in the Index of Industrial Production (IIP).  The combined Index of Eight Core Industries stands at 129.1 in December, 2017, which was 4.0 per cent higher as compared to the index of December, 2016. Its cumulative growth during April to December, 2017-18 was 4.0 per cent.

Coal

Coal production (weight: 10.33 per cent) declined by 0.1 per cent in December, 2017 over December, 2016. Its cumulative index increased by 1.3 per cent during April to December, 2017-18 over corresponding period of the previous year.

Crude Oil

Crude Oil production (weight: 8.98 per cent) declined by 2.1 per cent in December, 2017 over December, 2016. Its cumulative index declined by 0.4 per cent during April to December, 2017-18 over the corresponding period of previous year.

Natural Gas

The Natural Gas production (weight: 6.88 per cent) increased by 1.0 per cent in December, 2017 over December, 2016. Its cumulative index increased by 4.0 per cent during April to December, 2017-18 over the corresponding period of previous year.

Refinery Products

Petroleum Refinery production (weight: 28.04 per cent) increased by 6.6 per cent in December, 2017 over December, 2016. Its cumulative index increased by 3.9 per cent during April to December, 2017-18 over the corresponding period of previous year.

Fertilizers

Fertilizers production (weight: 2.63 per cent) increased by 3.0 per cent in December, 2017 over December, 2016. Its cumulative index declined by 0.6 per cent during April to December, 2017-18 over the corresponding period of previous year.

Steel

Steel production (weight: 17.92 per cent) increased by 2.6 per cent in December, 2017 over December, 2016. Its cumulative index increased by 6.7 per cent during April to December, 2017-18 over the corresponding period of previous year.

Cement

Cement production (weight: 5.37 per cent) increased by 19.6 per cent in December, 2017 over December, 2016. Its cumulative index increased by 2.7 per cent during April to December, 2017-18 over the corresponding period of previous year.

Electricity

Electricity generation (weight: 19.85 per cent) increased by 3.3 per cent in December, 2017 over December, 2016. Its cumulative index increased by 4.9 per cent during April to December, 2017-18 over the corresponding period of previous year.

Note 1: Data for October, 2017, November, 2017and December, 2017 are provisional.

Note 2: Since April, 2014, Electricity generation data from Renewable sources are also included.

Note 3: The industry-wise weights indicated above are individual industry weight derived from IIP and blown up on pro rata basis to a combined weight of ICI equal to 100.

Note 4: Release of the index for January, 2018 will be on Wednesday, 28^th February, 2018.

Annexure

Performance of Eight Core Industries

Yearly Index & Growth Rate

Base Year: 2011-12=100

Index

Sector	Weight	2012-13	2013-14	2014-15	2015-16	2016-17	Apr-Dec 2016-17	Apr-Dec 2017-18
Coal	10.3335	103.2	104.2	112.6	118.0	121.8	111.8	113.2
Crude Oil	8.9833	99.4	99.2	98.4	97.0	94.5	94.7	94.3
Natural Gas	6.8768	85.6	74.5	70.5	67.2	66.5	66.4	69.1
Refinery Products	28.0376	107.2	108.6	108.8	114.1	119.7	119.3	124.0
Fertilizers	2.6276	96.7	98.1	99.4	106.4	106.6	107.9	107.2
Steel	17.9166	107.9	115.8	121.7	120.2	133.1	130.4	139.1
Cement	5.3720	107.5	111.5	118.1	123.5	122.0	122.5	125.8
Electricity	19.8530	104.0	110.3	126.6	133.8	141.6	142.5	149.6
Overall Index	100.0000	103.8	106.5	111.7	115.1	120.5	119.1	123.9

 

Growth Rates (in per cent)

Sector	Weight	2012-13	2013-14	2014-15	2015-16	2016-17	Apr-Dec 2016-17	Apr-Dec 2017-18
Coal	10.3335	3.2	1.0	8.0	4.8	3.2	1.5	1.3
Crude Oil	8.9833	-0.6	-0.2	-0.9	-1.4	-2.5	-3.2	-0.4
Natural Gas	6.8768	-14.4	-12.9	-5.3	-4.7	-1.0	-3.3	4.0
Refinery Products	28.0376	7.2	1.4	0.2	4.9	4.9	6.7	3.9
Fertilizers	2.6276	-3.3	1.5	1.3	7.0	0.2	1.2	-0.6
Steel	17.9166	7.9	7.3	5.1	-1.3	10.7	10.9	6.7
Cement	5.3720	7.5	3.7	5.9	4.6	-1.2	2.8	2.7
Electricity	19.8530	4.0	6.1	14.8	5.7	5.8	6.4	4.9
Overall Index	100.0000	3.8	2.6	4.9	3.0	4.8	5.3	4.0

Performance of Eight Core Industries

Monthly Index & Growth Rate

Base Year: 2011-12=100

Index

Sector	Coal	Crude Oil	Natural Gas	Refinery Products	Fertilizers	Steel	Cement	Electricity	Overall Index
Weight	10.3335	8.9833	6.8768	28.0376	2.6276	17.9166	5.3720	19.8530	100.0000
Dec-16	142.0	96.2	68.4	124.9	108.8	137.5	115.0	137.8	124.1
Jan-17	144.1	96.9	68.4	122.0	107.2	142.6	117.6	138.9	124.8
Feb-17	141.4	88.1	63.2	112.1	97.2	134.9	112.2	130.2	116.9
Mar-17	169.5	97.4	69.1	128.9	103.6	146.2	131.8	147.9	132.5
Apr-17	103.1	92.6	63.5	116.0	89.0	134.1	122.3	150.6	118.7
May-17	111.8	97.6	69.7	125.4	98.3	142.9	128.6	158.1	126.8
Jun-17	107.6	94.1	69.3	119.4	107.3	138.0	132.0	147.4	121.7
Jul-17	98.5	96.4	72.2	119.4	108.6	131.3	122.4	151.9	120.4
Aug-17	101.3	95.1	69.5	121.6	115.4	139.0	117.3	155.4	123.0
Sep-17	103.1	92.0	68.8	122.7	105.3	138.7	119.8	150.5	122.0
Oct-17	119.4	95.7	71.0	132.1	116.8	146.5	125.2	149.8	128.6
Nov-17	132.5	90.8	68.5	126.0	111.8	140.6	127.0	140.1	124.7
Dec-17	141.9	94.2	69.1	133.1	112.1	141.1	137.6	142.3	129.1

Growth Rates (in per cent)

Sector	Coal	Crude Oil	Natural Gas	Refinery Products	Fertilizers	Steel	Cement	Electricity	Overall Index
Weight	10.3335	8.9833	6.8768	28.0376	2.6276	17.9166	5.3720	19.8530	100.0000
Dec-16	3.6	-0.8	-0.4	5.4	-2.9	15.9	-8.7	6.4	5.6
Jan-17	3.5	1.3	11.6	0.0	-1.2	11.3	-13.3	5.2	3.4
Feb-17	6.6	-3.4	-2.1	-2.8	-4.0	8.7	-15.8	1.2	0.6
Mar-17	10.6	0.9	9.6	2.0	-3.0	11.0	-6.8	6.2	5.2
Apr-17	-3.3	-0.6	2.0	0.2	6.2	9.0	-5.2	5.3	2.6
May-17	-3.2	0.7	4.5	5.4	-5.9	3.8	-1.4	8.2	3.9
Jun-17	-6.7	0.6	6.4	-0.2	-2.7	6.0	-3.3	2.2	1.0
Jul-17	0.6	-0.5	6.6	-2.7	0.2	9.4	1.0	6.6	2.9
Aug-17	15.4	-1.6	4.2	2.4	-0.6	2.2	0.7	8.3	4.4
Sep-17	10.4	0.1	6.3	8.1	-7.7	3.7	0.1	3.4	4.7
Oct-17	3.9	-0.4	2.8	7.5	3.0	8.4	-1.3	3.2	5.0
Nov-17	0.0	0.2	2.4	8.2	0.3	17.1	18.4	3.9	7.4
Dec-17	-0.1	-2.1	1.0	6.6	3.0	2.6	19.6	3.3	4.0

Index of Eight Core Industries shows sectoral production shifts with refinery, cement and electricity leading growth The Index of Eight Core Industries records the combined index at 129.1 for December 2017, a 4.0% increase year on year, and reports 4.0% cumulative growth for April-December 2017-18; sectoral indices and growth rates are provided showing varying monthly and year to date performance across coal, crude oil, natural gas, refinery products, fertilizers, steel, cement and electricity, with underlying industry weights scaled to a combined ICI weight of 100.