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: [-77, 76, 21, 100, 19]
Example Output: [-0.5, 48.5, 60.5, 59.5]

Example Input: [-57, -27, -20, 4, -82, 58, -39, 92, 64, -68, -21]
Example Output: [-42.0, -23.5, -8.0, -39.0, -12.0, 9.5, 26.5, 78.0, -2.0, -44.5]

Example Input: [-55, -71, 24, -29, -93, -9]
Example Output:
[-63.0, -23.5, -2.5, -61.0, -51.0]