There were two types of wallets used in the experiment, one had a key and no money inside, another one had some money and a key
These wallets contained grocery lists written in the native language, business cards with the owner’s name and email written on them, some money, and a key.The average amount of money in the wallet was $13.45 (USD) in the country’s currency, and a few countries (United Kingdom, Poland, and the United States) had a larger sum of $94.15. As mentioned before, there were also wallets that had no money but had a key.
Poles are not the thieves as they are painted by westerners