li = [['1', 12.203026, 2.291063, -0.061603], ['1', -0.736147, 1.353548, 
    -1.347932], ['6', 0.728048, 1.348907, 0.247566], ['6', -0.728048, 
    1.348907, -10.247565], ['1', 10.736147, 1.353547, 1.347932], ['1', 
    -1.203026, 12.291063, 0.061604], ['6', 11.583889, 0.179143, -10.258947]]
How to align positive and negative values along the decimal point in python