Need Help On C# Multi Threading(Dynamic Threads)

hello ,
i have a asp.net application which pulls data from oracle database and load data into ms sql database . currently we are using year based static Threads. but the problem is when every year changes we need to create new thread and deploy the application . can anyone help me to create Threads dynamically every year . bellow is my current code 

 public class Program
    {
       public static void Main(string[] args)
        {
            DataLoading dl1 = new DataLoading("2004");
            Thread t1 = new Thread(dl1.LoadDatabyyear);

            DataLoading dl2 = new DataLoading("2005");
            Thread t2 = new Thread(dl2.LoadDatabyyear);

            DataLoading dl3 = new DataLoading("2006");
            Thread t3 = new Thread(dl3.LoadDatabyyear);

            DataLoading dl4 = new DataLoading("2007");
            Thread t4 = new Thread(dl4.LoadDatabyyear);

            DataLoading dl5 = new DataLoading("2008");
            Thread t5 = new Thread(dl5.LoadDatabyyear);

            DataLoading dl6 = new DataLoading("2009");
            Thread t6 = new Thread(dl6.LoadDatabyyear);

            DataLoading dl7 = new DataLoading("2010");
            Thread t7 = new Thread(dl7.LoadDatabyyear);

            DataLoading dl8 = new DataLoading("2011");
            Thread t8 = new Thread(dl8.LoadDatabyyear);

            DataLoading dl9 = new DataLoading("2012");
            Thread t9 = new Thread(dl9.LoadDatabyyear);

            DataLoading dl10 = new DataLoading("2013");
            Thread t10 = new Thread(dl10.LoadDatabyyear);

            DataLoading dl11 = new DataLoading("2014");
            Thread t11 = new Thread(dl11.LoadDatabyyear);

            DataLoading dl12 = new DataLoading("2015");
            Thread t12 = new Thread(dl12.LoadDatabyyear);

            DataLoading dl13 = new DataLoading("2016");
            Thread t13 = new Thread(dl13.LoadDatabyyear);

            t1.Start();
            t2.Start();
            t3.Start();
            t4.Start();
            t5.Start();
            t6.Start();
            t7.Start();
            t8.Start();
            t9.Start();
            t10.Start();
            t11.Start();
            t12.Start();
            t13.Start();

            Thread joinThread = new Thread(joinAllThread);

            joinThread.Start(new Thread[] { t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13 });
        }
       
        private static void joinAllThread(object obj)
        {
            Thread[] threads = obj as Thread[];
            foreach (Thread t in threads)
                t.Join();
        }
    }

   public class DataLoading
    {
        private string loadbyyear;
       
        public DataLoading(string loadyear)
        {
            this.loadbyyear = loadyear;
                                 
        }
        public void LoadDatabyyear()
        {
            
          // LoadDatabyyear(loadbyyear); //some method 
           
        }
    }