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