xml creation in c#

StringBuilder strJourneySummary = new StringBuilder();

            strJourneySummary.Append("");

                    strJourneySummary.Append(" );

                    strJourneySummary.Append(" JourneyID =\"" + JourneyID + "\"");

                    strJourneySummary.Append(" JourneyLatitude =\"" + rawGpsData[counter].Latitude + "\"");

                    strJourneySummary.Append(" JourneyLongitude =\"" + rawGpsData[counter].Longitude + "\"");

                    strJourneySummary.Append(" JourneyAltitude =\"" + rawGpsData[counter].Altitude + "\"");

                    strJourneySummary.Append(" JourneyAccuracy =\"" + rawGpsData[counter].Accuracy + "\"");

                    //strJourneySummary.Append(" TimeSpend =\"" + rawGpsData[counter].TimeStamp + "\"");

                    strJourneySummary.Append(" TimeSpend =\"" + rawGpsData[counter].TimeStamp.ToString("yyy-MM-dd HH:mm:ss.fff") + "\"");

                    strJourneySummary.Append(" Speed =\"" + rawGpsData[counter].OrgSpeed + "\"");

                    if (rawGpsData[counter].G_Force == null)

                    {

                        strJourneySummary.Append(" AcceValue  =\"0\"");

                        strJourneySummary.Append(" LetgValue =\"0\">");

                    }

                    else

                    {

                        if (rawGpsData[counter].G_Force.Acc != 0)

                        {

                            strJourneySummary.Append(" AcceValue  =\"" + rawGpsData[counter].G_Force.Acc + "\"");

                        }

                        else

                        {

                            strJourneySummary.Append(" AcceValue  =\"" + rawGpsData[counter].G_Force.Dec + "\"");

                        }

                        strJourneySummary.Append(" LetgValue =\"" + rawGpsData[counter].G_Force.Latg + "\">");

                    }

                    strJourneySummary.Append("

");

outside loop

   strJourneySummary.Append("

");