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].
[86, -68, 0, -87, 70, -64, 18, -77, 75, 2, -62, 4, 34, -52, 99]