You will be given a definition of a task first, then some input of the task.
In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].

[91, -83, -3, 20, 59, -11, -47, 10, 8, 68, -76]
Output:
[4.0, -43.0, 8.5, 39.5, 24.0, -29.0, -18.5, 9.0, 38.0, -4.0]