I’m trying to bind dynamic data to Apex Charts series but values are not rendering in chart. My code

 [WebMethod]
        public static List<object> GetRequestsCount()
        {
            List<object> chartData = new List<object>();
            List<int> totalCount = new List<int>();
            totalCount.Add(99);
            chartData.Add(totalCount.ToArray());
            return chartData;
        }

`$(function () {
“use strict”;

// chart 1

$.ajax({
    type: "POST",
    url: '../portaldashboard.aspx/GetRequestsCount',
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    success: OnSuccess_,
    error: OnErrorCall_
});

function OnErrorCall_(repo) {
    alert(repo);
}

function OnSuccess_(reponse) {
    var aData = reponse.d;
    alert(reponse.d); // value is appearing in popup
    console.log(aData[1]);
    var options = {
        series: aData[1],
        chart: {
            height: 180,
            type: 'radialBar',
            toolbar: {
                show: false
            }
        },'

Kindly help in binding the data to chart from C#.