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Step 2: Calculating production index of VSIC 4-digit classes

The production index at 4-digit class of VSIC industry is the weighted
average index of indexes of items representing for such VSIC 4-digit classes.

Formula:

 W
i
I qN 4   qn W qn qn

Where:

I qN4: Production index for the N-th class of the VSIC 4-digit class.

I qn: Production index for the n-th item in the VSIC 4-digit class.
W qn: Weight of the item n. Weight of item is the value at basic price of

the item in the base year 2015.
Step 3: Calculating production index of VSIC 2-digit divisions

The production index at 2-digit division of VSIC industry is the weighted
average index of the production indices of VSIC 4-digit classes under the VSIC
2-digit divisions.

Formula:

I  W
I qN 2   qN 4 qN 4
 W qN 4

Where:

I qN2: Production index of the VSIC 2-digit divisions.

I qN4: Production index of the VSIC 4-digit classes.

W qN4: Weight of the VSIC 4-digit divisions. Weight of the VSIC 4-digit
divisions is the value added at current price of the base year 2015.

Step 4: Calculating production index of VSIC 1-digit sector

The production index at 1-digit sector of VSIC industry is the weighted
average index of the production indices of VSIC 2-digit divisions under the
VSIC 1-digit sectors.

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