The latest annual HSBC expat survey saw Thailand drop six places in just one year.
The kingdom was ranked in 21st place of the 311 surveyed countries in the HSBC Expat Explorer survey.
Many similar expat surveys are published every year. Some, such as this one, do include a property-related element.
What is perhaps most worrying is that Thailand is now ranked behind Indonesia, Malaysia and Vietnam, all of which saw yearly rises in the rankings, as well as Singapore which was ranked as the number one expat destination in this survey.
Hong Kong was also ahead of Thailand and ranked in 17th place.
In a statement, the publishers of the expat survey said that the top territories for expats must deliver the best benefits the world has to offer.
It suggested that Singapore must be a very special destination to be named the best place in the world for expats to move to for the fourth year in a row.
It said that almost half of all expats in Singapore moved to progress their careers (45 percent, and although more than a quarter simply wanted a challenge, many more (38 percent) wanted to improve their earnings.
They can certainly achieve their aim here, according to the report. Earning an average of USD$ 162,000 (THB 5.3 million, expats in Singapore bring in US$ 56,000 more than the global average.
The 2018 HSBC Expat Explorer survey is a global survey completed by 22,318 expats across the world. The research was conducted online by YouGov during March and April 2018.
The league tables were calculated using responses to 27 of the questions asked as part of the research.
A minimum sample of 100 expat respondents, including at least 30 expat parents, wass required for a country to be included in the league tables.