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].

[34, -47, 92, -36, 63, 63, -15, 93, 3, -77, -86, -12, -86]
[-6.5, 22.5, 28.0, 13.5, 63.0, 24.0, 39.0, 48.0, -37.0, -81.5, -49.0, -49.0]

[-47, -92, 82, -29, -21, -46, -47, 55, -27, -9, 39, -94, 81]
[-69.5, -5.0, 26.5, -25.0, -33.5, -46.5, 4.0, 14.0, -18.0, 15.0, -27.5, -6.5]

[10, 78, -51, -20, 48, 55, -72, -1]

[44.0, 13.5, -35.5, 14.0, 51.5, -8.5, -36.5]