[Solved]-Highcharts center on x and y axis offset-Highcharts

you can try to set min and max values for the axis:

xaxis: {
    plotlines: [{
        color: '#000000',
        width: 2,
        value: 1
    }],
    max: 2,
    min: 0
},
yaxis: {
    plotlines: [{
        color: '#000000',
        width: 2,
        value: 1
    }],
     max: 2,
    min: 0
},

example sql fiddle here