Numbers are overlapping when using option 'Show data label' on any stacked visual, including bars, area, and lines
as of this post Since 2020 this is a problem
You can use the Chart Config Editor to specify where you want the data labels to be positioned. For example, if you have 3 series, the following code would move the position of the data values for the 1st series so they were 20 pixels higher:
// Series 1 = the first column in the data table
series: [{ // series 1
dataLabels: {
enabled: true,
x: 0, // offset the horizontal position of label
y: -20, // offset the vertical position of label
}
}, { // series 2
dataLabels: {
enabled: true,
}
}, { //series 3
dataLabels: {
enabled: true,
}
}],