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].

[-93, -90, -54, 88, 28, 87, 86, 83, 50, -6, -87, 97, -91, 5, -38]
[-91.5, -72.0, 17.0, 58.0, 57.5, 86.5, 84.5, 66.5, 22.0, -46.5, 5.0, 3.0, -43.0, -16.5]

[-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]
[-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]

[-69, -52, 38, 63, -78, -55, -35, 17, 41, 43, -74, -77, 23, 55, 65]

[-60.5, -7.0, 50.5, -7.5, -66.5, -45.0, -9.0, 29.0, 42.0, -15.5, -75.5, -27.0, 39.0, 60.0]