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: [-37, 89]
Example Output: [26.0]

Example Input: [40, 77, 36, 50, 36, 89, -13, 75, -57, -13, 15, 42, 72, 21]
Example Output: [58.5, 56.5, 43.0, 43.0, 62.5, 38.0, 31.0, 9.0, -35.0, 1.0, 28.5, 57.0, 46.5]

Example Input: [-81, 7, 61, 56, -29, -44, -79, 61, -40, 36, 44]
Example Output:
[-37.0, 34.0, 58.5, 13.5, -36.5, -61.5, -9.0, 10.5, -2.0, 40.0]