This is how Google's Search Engine Metrics calculate the popularity of some of the Olympic Team Sports for the last 5 years, the results seem pretty realistic, but I wonder what Totallympics users think of their accuracy
Some quick side notes:
1) I decided not to include football, because it would surely take the 1st place in 99% of countries
2) This is a list mostly of summer sports, but I also included Ice Hockey, because other not included summer team sports like field hockey turned out to be barely noticable on the graph.
3) For the "Breakdown by sport" part I decided not to included data from smaller countries, because it was more difficult to tell different shades of colors apart.
If you're interested, you can check the interactive version here: https://trends.google.com/trends/explore?cat=20&date=today 5-y&q=%2Fm%2F018w8,%2Fm%2F03tmr,%2Fm%2F07_53,%2Fm%2F03krj,%2Fm%2F0crlz You can customize time range, check out the results from your own country or any other country (and even from small regions in each nation) Overall pretty interesting tool
Info: Time graph - here is a overwiew of how the popularity changed through time. You can easily tell when important competitions took place for each sport, and how it boosted its popularity. To the right is the average popularity each sport enjoyed during the last 5 years. Basketball is easily the most popular sport, then volleyball, then Ice Hockey. Breakdown by region - This shows what sport was the most popular in what country in the last 5 years. Color depth represents advantage of interest over 2nd most popular sport. (I recommend visiting the Google Trends page, because some countries are barely visible on the map. Also, it provides deeper insight - if you hover your mouse over a country, you can get data about all the other sports.) Breakdown by sports - finally here is a series of maps that provides information on how popular the sport is in a given country. Color depth represents popularity - the more deep the color, the more popular is the sport. As I said before, I did not include smaller countries, with low ammount of search info, because it would make it more difficult to view the map. The details on some maps are already hard to notice... Once again, I suggest clicking the link to get more in-depth information.
BASKETBALL
ICE HOCKEY
VOLLEYBALL
HANDBALL
WATER POLO