Answer:
I think that rice is the most popular.
Explanation: because if you look at the other numbers they are smaller now if you look at Rice, Wheat, Sugar, and maize pay close attention at the numbers so you can easily elliminate maize, and sugar now you compare 567 (Rice) and 527 (Wheat) Rice is bigger than wheat hope this helps :)
On the second picture I think it's sheep 200,000 (ALWAYS COMPARE THE NUMBERS TOGETHER)
I hope I was a big help :)