👉 Yearlies are a type of data structure in programming languages that represent the number of occurrences of each element within a list. They are often used to store and access elements by their value, rather than their index. For example, consider a list of integers: ``` my_list = [10, 20, 30, 40, 50] ``` If we want to find the number of times `10` appears in this list, we can use