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: [57, -42, -14, -48, -62, 7, -9]
Example Output: [7.5, -28.0, -31.0, -55.0, -27.5, -1.0]

Example Input: [-3, -21, 57, -70, -97, -90, 31, 83, 68, -34, -65, 13]
Example Output: [-12.0, 18.0, -6.5, -83.5, -93.5, -29.5, 57.0, 75.5, 17.0, -49.5, -26.0]

Example Input: [-28, 70, -14, -43, -14, -33, 84, -13, -52, 71, -78]
Example Output:
[21.0, 28.0, -28.5, -28.5, -23.5, 25.5, 35.5, -32.5, 9.5, -3.5]