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].

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

[9, 43, 32, 49, 89, -91, -51, -62, 48, -80, -25, -35, 27, -12]
[26.0, 37.5, 40.5, 69.0, -1.0, -71.0, -56.5, -7.0, -16.0, -52.5, -30.0, -4.0, 7.5]

[-57, -30, 65, 62, 19, 27, -4, 85, 74, -78]

[-43.5, 17.5, 63.5, 40.5, 23.0, 11.5, 40.5, 79.5, -2.0]