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, 55, -1, 83, 35, 85, 50, 90, -12, -65, 43, 94, 39, -39, -78]
Example Output: [48.5, 27.0, 41.0, 59.0, 60.0, 67.5, 70.0, 39.0, -38.5, -11.0, 68.5, 66.5, 0.0, -58.5]

Example Input: [-36, 17, -25, -21, 45, 34, -39, 21, 71]
Example Output: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]

Example Input: [18, -81, 88, 90, 35, 77, -38]
Example Output:
[-31.5, 3.5, 89.0, 62.5, 56.0, 19.5]