Annual Wage Structure Survey 
Sample errors
Variation coefficients for annual gross earnings, by period, NACE-93 section and sex
Units: %

	Both sexes	Female	Male	
ALL SECTIONS	
    2009	0.40	0.52	0.56	
    2008	0.43	0.65	0.62	
B: MINING AND QUARRYING INDUSTRIES	
    2009	2.16	14.10	2.03	
    2008	1.73	9.09	2.07	
C: MANUFACTURING INDUSTRY	
    2009	0.63	1.39	0.70	
    2008	0.62	1.61	0.82	
D: SUPPLY OF ELECTRICAL ENERGY, GAS, STEAM AND AIR CONDITIONING	
    2009	1.44	1.87	1.64	
    2008	1.54	7.20	1.87	
E: WATER SUPPLY, SEWERAGE ACTIVITIES, WASTE MANAGEMENT AND REMEDIATION ACTIVITIES	
    2009	1.12	2.76	1.22	
    2008	1.61	5.33	1.96	
F: CONSTRUCTION	
    2009	1.13	3.76	1.17	
    2008	1.22	4.18	1.24	
G: WHOLESALE AND RETAIL TRADE REPAIR OF MOTOR VEHICLES AND MOTORCYCLES	
    2009	1.69	2.12	2.46	
    2008	1.90	2.66	2.70	
H: TRANSPORT AND STORAGE	
    2009	1.77	3.35	2.05	
    2008	1.89	3.28	2.26	
I: ACCOMMODATION	
    2009	2.18	2.29	3.74	
    2008	1.91	2.52	3.55	
J: INFORMATION AND COMMUNICATIONS	
    2009	1.22	1.39	1.68	
    2008	1.32	2.61	2.05	
K: Financial and insurance activities	
    2009	0.89	1.03	1.29	
    2008	1.07	1.92	2.08	
L: REAL ESTATE ACTIVITIES	
    2009	3.45	3.61	6.15	
    2008	3.65	5.07	6.57	
M: PROFESSIONAL, SCIENTIFIC AND TECHNICAL ACTIVITIES	
    2009	1.66	1.61	2.68	
    2008	1.43	1.72	2.30	
N: ADMINISTRATIVE AND SUPPORT SERVICE ACTIVITIES	
    2009	1.54	1.61	2.46	
    2008	1.91	1.94	3.12	
O: PUBLIC ADMINISTRATION AND DEFENCE COMPULSORY SOCIAL SECURITY ACTIVITIES	
    2009	1.43	1.62	2.28	
    2008	1.39	1.98	2.61	
P: EDUCATION	
    2009	1.89	2.11	3.81	
    2008	2.40	2.64	4.66	
Q: HEALTH AND SOCIAL SERVICES ACTIVITIES	
    2009	0.64	0.69	1.44	
    2008	0.87	1.13	3.01	
R: ARTS, RECREATION AND ENTERTAINMENT ACTIVITIES	
    2009	1.79	2.06	2.66	
    2008	2.22	2.36	3.65	
S: OTHER SERVICES	
    2009	2.11	2.32	3.85	
    2008	2.19	2.23	4.29	
Notes:
When the box is marked with a '-' sign before the data,  this indicates that the number of sample observations is  between 100 and 500, and thus the figure is unreliable and  must be interpreted cautiously.
Source: National Statistics Institute