What are the common quotas used to achieve a nationally representative sample?


We recommend using country-specific quotas to achieve a nationally representative sample. These quotas cover ideal sample proportions by gender, age, and location.

We have compiled information on the most commonly used quotas used to achieve a nationally representative sample for the following countries:

๐Ÿ‡ฌ๐Ÿ‡ง UK

Gender
Female50%
Male50%
Age
18-2413%
25-3416%
35-4420%
45-5416%
55-7535%
Location
South East14%
Greater London13%
North West11%
East Anglia9%
Midlands16%
South West8%
Yorkshire and Humberside8%
North East4%
Ireland3%
Scotland8%
Wales5%

๐Ÿ‡ช๐Ÿ‡ธ Spain

Gender
Female50%
Male50%
Age
18-2917%
30-3922%
40-4921%
50-5915%
60-6912%
70+13%
Location
Andalucia19%
Aragon3%
Castilla y Leon5%
Castilla-La Mancha4%
Cataluna16%
Comunidad Valenciana11%
Euskal Autonomia Erkidegoa5%
Galicia6%
Islas Canarias5%
Madrid14%
Others13%

๐Ÿ‡ฏ๐Ÿ‡ต Japan

Gender
Female51%
Male49%
Age
20-3428%
35-4427%
45-5426%
55-6419%
Location
Chubu17%
Chugoku6%
Hokkaido4%
Kanto33%
Kinki18%
Kyushu11%
Shikoku4%
Tohoku7%

๐Ÿ‡ฆ๐Ÿ‡บ Australia

Gender
Female49%
Male51%
Age
18-2921%
30-3918%
40-4918%
50-5917%
60-6913%
70+13%
Location
Sydney22%
NSW Regional12%
Melbourne20%
VIC Regional7%
Brisbane10%
QLD Regional11%
Perth8%
WA Regional2%
Adelaide6%
SA Regional2%

๐Ÿ‡ฟ๐Ÿ‡ฆ South Africa

Gender
Female49%
Male51%
Age
21-3439%
35-4417%
45-5415%
55-6420%
65+9%
Location
Urban67%
Rural33%

๐Ÿ‡น๐Ÿ‡ญ Thailand

Gender
Female50%
Male50%
Age
20-3432%
35-4421%
45-5419%
55+28%
Location
Bangkok78%
Pattaya-Chon Buri8%
Chiang Mai6%
Hat Yai-Songkhla5%
akhon Ratchasima3%

๐Ÿ‡ฎ๐Ÿ‡ณ India*

Gender
Female48%
Male52%
Age
25-3430%
35-4426%
45-5420%
55+24%
Location
Mumbai12%
Delhi14%
Bangalore12%
Kolkata4%
Chennai14%
Ahmedabad2%
Hyderabad10%
Pune5%
Other27%

*India has different legal drinking age in different states, we recommend to uniform qualifying age to start at 25 (which is the highest age for legal drinking in India) to be safe.

๐Ÿ‡จ๐Ÿ‡ณ China

Gender
Female49%
Male51%
Age
18-3434%
35-4421%
45-5419%
55+26%
Location
Tier 1 City10%
Tier 2 City9%
Tier 311%
Tier419%
Tier 551%

๐Ÿ‡ท๐Ÿ‡ด Romania

Gender
Female49%
Male51%
Age
18-349%
35-4427%
45-5436%
55+28%
Location
Urban54%
Rural46%

๐Ÿ‡ญ๐Ÿ‡ท Croatia

Gender
Female52%
Male48%
Age
18-3429%
35-4419%
45-5418%
55+34%
Location
Urban57%
Rural43%

๐Ÿ‡จ๐Ÿ‡ฟ Czech Republic

Gender
Female51%
Male49%
Age
18-3430%
35-4419%
45-5418%
55+33%
Location
Urban74%
Rural26%

๐Ÿ‡ญ๐Ÿ‡บ Hungary

Gender
Female52%
Male48%
Age
18-3430%
35-4418%
45-5418%
55+34%
Location
Urban72%
Rural28%