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].

[-16, -7, -2, 3, 84, -53, 9, 30, -67, 44, -42, 99]
[-11.5, -4.5, 0.5, 43.5, 15.5, -22.0, 19.5, -18.5, -11.5, 1.0, 28.5]

[84, 76, -56, 90, -63, 11, -25, 44, -16, -86, -51, -87, -7, 38]
[80.0, 10.0, 17.0, 13.5, -26.0, -7.0, 9.5, 14.0, -51.0, -68.5, -69.0, -47.0, 15.5]

[21, -83, 8, -30, 78, -87]

[-31.0, -37.5, -11.0, 24.0, -4.5]