The results showed that:
62% consider themselves to be religious, while 25% think of themselves as non-religious and 9% consider themselves atheists.
Levels of religiosity seem to be inversely proportional to income and education levels.
While 66% of people with low income affirm to be religious, this percentage drops to 50% among people with high income.
The same trend is verified in relation to education levels: 83% of people with lower education level are religious against 49% of higher level.
Most religious countries:
Thailand is the most religious country, with almost its entire population 98% declaring to be religious.
Next to Thailand, the countries that stand out as most religious are Nigeria (97%), Kosovo, India, Ghana, Ivory Coast, Papua New Guinea (all of them with 94%), Fiji (92%), Armenia (92%) and Philippines (90%).
Least religious countries:
On the opposite end, China is the least religious country, with 67% claiming to be atheists - over twice the percentage found in any other country- and a further of 23% defining themselves as non-religious. Only 9% are religious.
Following China among the least religious countries we find Sweden, Czech Republic and United Kingdom with 7 out of 10 people who said to be atheist or non-religious (18% and 55% in Sweden, 25% and 47% in Czech Republic, 11% and 58% in the United Kingdom).
It seems education is the key to the decline of religion but I wonder if that applies in the United States, where religion seems to propagate at the very highest levels of society.
These results can be compared with a similar survey in 2016.