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, -76]
Example Output: [-59.0]

Example Input: [-39, -78, -10, -56, 67, 4, 97, 31]
Example Output: [-58.5, -44.0, -33.0, 5.5, 35.5, 50.5, 64.0]

Example Input: [-26, 48, 46, -98, -77, -61, 6]
Example Output:
[11.0, 47.0, -26.0, -87.5, -69.0, -27.5]