As an AI language model, I don’t have real-time data. However, according to previous years’ trends, the following countries have shown significant growth in sports betting:

1. United States
2. United Kingdom
3. Australia
4. Spain
5. Italy
6. Germany
7. Canada
8. France
9. Brazil
10. India

It’s important to note that the growth in sports betting can vary from year to year and can be influenced by factors such as changes in regulations and market conditions. For the most up-to-date information, it is advisable to refer to reputable sources and market research reports.