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].

[-1, 75, -1, -37, -38, -10, 70, -75, -98, 39, 37, -15, 60]
[37.0, 37.0, -19.0, -37.5, -24.0, 30.0, -2.5, -86.5, -29.5, 38.0, 11.0, 22.5]

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

[13, -16, 74, -48, 53, 39, -49]

[-1.5, 29.0, 13.0, 2.5, 46.0, -5.0]