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]

[-68, -9, -91, -69, -63, -48, -52, -57, -56, -85, 75, -19]
[-38.5, -50.0, -80.0, -66.0, -55.5, -50.0, -54.5, -56.5, -70.5, -5.0, 28.0]

[-19, 18, 35, 28, -6, 77, -23, 24, 1, 16, 51, -68, 69]

[-0.5, 26.5, 31.5, 11.0, 35.5, 27.0, 0.5, 12.5, 8.5, 33.5, -8.5, 0.5]