Poland seems to be one of the major developed countries bucking the trend, with the number still falling at -1%.But also notice that the population of Poland is itself declining, and the ratio of JWs to the population has improved over the years. For example the ratio was 341 in 2021 and is down to 328 in 2024. This is a result of population decline in Poland rather than JW growth. The situation is similar in other East European countries with declining populations as well in Italy, Japan and Korea.
It will indeed be interesting to see if this is a temporary boost caused by changes to reporting, and if it drops back in 2024-25 and 2025-26 service years.
Yeah, it’s difficult to make valid comparisons when they keep changing the definitions all the time. Perhaps they’ll stop publishing statistics altogether at some point. In the meantime I still think that number of congregations is one of the most stable and meaningful indicators of growth or decline and by that measure JWs have declined over the past 10 years with a slight recovery in the last couple of years.