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]

[66, 78, -55, 77, -81, -61, 2, -92, 59, -99, 16]
[72.0, 11.5, 11.0, -2.0, -71.0, -29.5, -45.0, -16.5, -20.0, -41.5]

[-21, -79, -1, -56, 5, 29, -8, -77, -75, 11]

[-50.0, -40.0, -28.5, -25.5, 17.0, 10.5, -42.5, -76.0, -32.0]