SMA не работает. Что я делаю не так?

using StockSharp.Algo;
using StockSharp.Algo.Candles;
using StockSharp.Algo.Indicators;

SimpleMovingAverage LongSma = new SimpleMovingAverage() { Length = 2 };

TimeFrameCandle c1 = new TimeFrameCandle { ClosePrice = 100000 };
TimeFrameCandle c2 = new TimeFrameCandle { ClosePrice = 120000 };
TimeFrameCandle c3 = new TimeFrameCandle { ClosePrice = 140000 };
TimeFrameCandle c4 = new TimeFrameCandle { ClosePrice = 160000 };


Console.WriteLine("SMA process 1 = " + LongSma.Process(c1));
Console.WriteLine("SMA   value 1 = " + LongSma.GetCurrentValue());

Console.WriteLine("SMA process 2 = " + LongSma.Process(c2));
Console.WriteLine("SMA   value 2 = " + LongSma.GetCurrentValue());

Console.WriteLine("SMA process 3 = " + LongSma.Process(c3));
Console.WriteLine("SMA   value 3 = " + LongSma.GetCurrentValue());

Console.WriteLine("SMA process 4 = " + LongSma.Process(c4));
Console.WriteLine("SMA   value 4 = " + LongSma.GetCurrentValue());

SMA process 1 = 50000
SMA   value 1 = 0
SMA process 2 = 60000
SMA   value 2 = 0
SMA process 3 = 70000
SMA   value 3 = 0
SMA process 4 = 80000
SMA   value 4 = 0