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: [-18, -74, -7, 59, -76, -57, -99, 65]
Example Output: [-46.0, -40.5, 26.0, -8.5, -66.5, -78.0, -17.0]

Example Input: [-53, 31, 52]
Example Output: [-11.0, 41.5]

Example Input: [-47, 96, -11, -71, -86, 15, -89, 64, 84, 90, 58, -70, 9]
Example Output:
[24.5, 42.5, -41.0, -78.5, -35.5, -37.0, -12.5, 74.0, 87.0, 74.0, -6.0, -30.5]