1. Andris Fisenko Central Statistical Bureau of Latvia
Distribution of surveys sample in Central Statistical Bureau of Latvia.
Andris Fisenko
Central Statistical Bureau of Latvia

2. Outline Sampling frame Sampling designe Three condacted surveys
Primary sampling units
Secondary sampling units
Three condacted surveys

3. Sampling frame 2000 Census counting areas
2009 Edited by Population register

4. Primary sampling unit ~4000 size of 500 dwellings
PSU serpentine in rural area
PSU location or coverage over 1 quarter

5. Primary sampling unit
1 week 1 quarter

6. Primary sampling unit PSU 2 X 6 X 6 X LFS HBS SDT
Number of samples in PSU ‘ life ’
PSU
2 X
LFS
6 X
HBS
6 X
SDT

7. Primary sampling unit Survey 1.wave 2.wave 3.wave 4.wave LFS HBS SDT
PSU waves in LFS W1 W2 W3 W4 W5 W6 W7 W8
Dwelling waves (sample 1) w1 w2 w3 w4
Dwelling waves (sample 2)
Survey
1.wave
2.wave
3.wave
4.wave
LFS
HBS
SDT

8. Secondary sampling unit
Purpose of two stage sampling

9. Secondary sampling unit
Number of dwellings are used in one PSU
Survey
Samples
Dwellings (max)
Total
LFS 2 12 24
HBS 6 14 84
SDT 10 60
168
There is capacity for other houshold or person surveys

10. Conclusions
Compute samples for continuous surveys according to the rotation pattern
PSU for long period
Cost efficiency
Other social surveys