Wy viewWithTag is returning nil : activite1Label as the tag 1

class StatsViewController: UIViewController {
    
    @IBOutlet weak var activite1Label: UILabel!
    @IBOutlet weak var activite2Label: UILabel!
    @IBOutlet weak var activite3Label: UILabel!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        activite1Label.text = activite[0]
        activite2Label.text = activite[1]
        activite3Label.text = activite[2]
       
        miseAjourTotal()
        
    }

    func miseAjourTotal() {        
        let leLabel = view.viewWithTag(1) as! UILabel
        print("leLabel: \(leLabel.text)")
    }
}
