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: [91, 12, -2, 74, -96, 64, 58, -44, -31, 38, 1, -26, -88, -67, 80]
Example Output: [51.5, 5.0, 36.0, -11.0, -16.0, 61.0, 7.0, -37.5, 3.5, 19.5, -12.5, -57.0, -77.5, 6.5]

Example Input: [-14, 33, -89]
Example Output: [9.5, -28.0]

Example Input: [-19, -90, 14, -21, -48, 18, -11]
Example Output:
[-54.5, -38.0, -3.5, -34.5, -15.0, 3.5]