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: [5, 5]
Example Output: [5.0]

Example Input: [78, -73, -41, -39, 9, 71, 53, 81, -72, -45, 66, 52, 89, -80, 90]
Example Output: [2.5, -57.0, -40.0, -15.0, 40.0, 62.0, 67.0, 4.5, -58.5, 10.5, 59.0, 70.5, 4.5, 5.0]

Example Input: [-65, -39, -64, 33, -11]
Example Output:
[-52.0, -51.5, -15.5, 11.0]