Chart Js: How to display data values in each bars chartjs

Here is the LwC code:

import { LightningElement,api, wire, track } from 'lwc';
import chartjs from '@salesforce/resourceUrl/chartjs_v280';
import ChartDataLabels from '@salesforce/resourceUrl/ChartjsPluginDataLabels';
import { loadScript } from 'lightning/platformResourceLoader';
export default class ChartDemocmp extends LightningElement {
    isChartJsInitialized;
    chartConfiguration;
    connectedCallback(){
        this.setData();
    }
    setData(){
        this.chartConfiguration = {
            type: 'bar',
    data: {
     labels: ["data1","data2","data3","data4","data5","data6","data7"],
     datasets: [
      {
       label: 'dataset',
       barPercentage: 0.5,
       barThickness: 6,
       maxBarThickness: 8,
       minBarLength: 2,
       backgroundColor: "blue",
       data: [65, 59, 80, 81, 56, 55, 40],
      },
     ],
    },
    plugins: [ChartDataLabels], //plugin register
    options: {
        resposive:true,
    },
   };
   console.log('chart data---> '+JSON.stringify(this.chartConfiguration));
}
    renderedCallback() {
        /*if (this.isChartJsInitialized) {
            return;
        }*/
        // load chartjs from the static resource
        Promise.all([
            loadScript(this, chartjs)
        ])
        .then(()=>{
            //load ChartDataLabels from the static resource
        Promise.all([
            loadScript(this, ChartDataLabels )
        ])
        .then(() => {
            console.log('Loaded');
            this.isChartJsInitialized = true;
            if(this.chart!= null || this.chart!=undefined){
                this.chart.destroy();//destory the chart once data is updated to show the new chart
                }
        const ctx = this.template.querySelector("canvas.barChart").getContext('2d');
       Chart.plugins.register(ChartDataLabels);
        this.chart = new window.Chart(ctx,JSON.parse(JSON.stringify(this.chartConfiguration)));
        //console.log('data chart');
        });
    })
        .catch(error => {
           console.error('error chart--> '+JSON.stringify(error))
        });
    }
    }

Here is the screen shot of bar chart below where the values are not getting displayed on each bars: