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, -100, 41, -66, -18, -91, -1, -82, -99, 26, 27, -43, 40]
[-49.5, -29.5, -12.5, -42.0, -54.5, -46.0, -41.5, -90.5, -36.5, 26.5, -8.0, -1.5]

[-42, -27, -37, -63, 89, -61, -68]
[-34.5, -32.0, -50.0, 13.0, 14.0, -64.5]

[79, -39, 30, -59, 79, 22, 75, -8, 66, -15, -34, -33, -100, -54]

[20.0, -4.5, -14.5, 10.0, 50.5, 48.5, 33.5, 29.0, 25.5, -24.5, -33.5, -66.5, -77.0]