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, 76, -35, 6, -72, 89, -100, -9, -81, 73, 90, -20]
Example Output: [19.5, 20.5, -14.5, -33.0, 8.5, -5.5, -54.5, -45.0, -4.0, 81.5, 35.0]

Example Input: [-16, 54, 42]
Example Output: [19.0, 48.0]

Example Input: [39, 79, -41, -6, 43, 99, 96, 93, 8, 80, -45, 21, 61, 10, 39]
Example Output:
[59.0, 19.0, -23.5, 18.5, 71.0, 97.5, 94.5, 50.5, 44.0, 17.5, -12.0, 41.0, 35.5, 24.5]