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].

Example Input: [-42, -76]
Example Output: [-59.0]

Example Input: [92, -48]
Example Output: [22.0]

Example Input: [-28, 70, 56, -38, 58, 64, 15, -86, 37, 80, -59, -57]
Example Output:
[21.0, 63.0, 9.0, 10.0, 61.0, 39.5, -35.5, -24.5, 58.5, 10.5, -58.0]