Four-yearly Wage Structure Survey 
Sample errors
Variation coefficients for the gross annual earnings by NCEA-93 sections and subsections
Units: %

All activities;0.40;
CA. Extraction of Energy products;2.90;
CB. Extraction of other ores except energy products;1.40;
DA. Food, beverage and tobacco industry;1.30;
DB. Textile and clothing industry;1.80;
DC. Leather and footwear industry;1.20;
DD. Wood and cork industry;1.10;
DE. Paper industry Publishing, graphic arts and reproduction of prints;1.50;
DF. Refinement of petroleum and treatment of nuclear fuels;1.60;
DG. Chemical industry;1.40;
DH. Rubber and plastic materials transformation industry;1.30;
DI. Other non-metallic ore product industries;1.20;
DJ. Metallurgy and manufacture of metallic products;0.80;
DK. Construction of machinery and mechanical equipment industry;1.10;
DL. Electrical, electronic and optical material and equipment industry;1.60;
DM. Manufacture of transport material;0.90;
DN. Various manufacturing industries;1.20;
E. Production and distribution of electrical energy, gas and water supply;1.10;
F. Construction;1.10;
G. Commerce and repairs;1.50;
H. Accommodation;1.20;
I. Transport, storage and communications;1.40;
J. Financial intermediation;1.10;
K. Real estate and rental activities business services;2.10;
M. Education;1.10;
N. Health and veterinary activities, corporate services;0.80;
O. Other community, social and personal service activities   personal services;2.00;
Notes:
Source: National Statistics Institute