Introduction
Although it is a matter of taste, I can't feel the truth from some article based on very few past chart. I want to read an article which has something real for improve my trading. So, at first, I try to write a something like that. And I hope that many articles based on long term back test at short period chart will be show up on this contest...
It aside this article's research theme is Simple Volume Average Indicator. Many FX-websites says that "Look the volume". But is it true? Does volume indicator has a something meaning? I can't believe that without any back data. So I did check that with back-test in decade by myself.

Back Test Settings
At first, this chapter explains the strategy which was used for get the default back-test data.

Fig 2: Trading Rule Sample: SELL
• Trading rules of the sample strategy for this research is “MinMaxBoxCounter”.
• Chart is EUR/USD 5 minutes bar.
• SL is 0.5% of the close price.
• TP is 0.1% of the close price.
• Filter is ALL_FLATS.
• When close price was highest / lowest value of the last 26 bars it try to take a SHORT / LONG position.
• Bar A is the bar which is 26 bar before.
• Bar B is the bar which has a second highest / lowest close price.
• Bar C is the bar which has a lowest / highest close price.
• Bar D is the bar which has a highest / lowest close price.
• All orders are closed at before weekends (Friday 23:55 EET).
• Back test period is 500 weeks from 2004 to 2013 except 1st and 52th week of each year.

Summary of Back Test Result
Explains of sample result sheet (fig 3 - 8).
• Background Color: Light Green is a positive integers.
• Background Color: Light Red is a negative integers.
• Background Color: Yellow is greater than default value.
• Text Color: Black is a positive integers.
• Text Color: Dark Red is a negative integers.
• Default: All orders.
• SVA_D < SVA_C: Pick up the orders, only if SVA-value of the bar D was less than that of the bar C.
• SVA_D < SVA_B: Pick up the orders, only if SVA-value of the bar D was less than that of the bar B.
• SVA_D < SVA_A: Pick up the orders, only if SVA-value of the bar D was less than that of the bar A.
• D < C & D < B: Pick up the orders, only if SVA-value of the bar D was less than that of the bar C and SVA-value of the bar D was less than that of the bar B.
• D < C & D < B & D < A: Pick up the orders, only if SVA-value of the bar D was less than that of the bar C and SVA-value of the bar D was less than that of the bar B and SVA-value of the bar D was less than that of the bar A.
Fig 3: Back Test Summary: GBP/USD

Fig 4: Back Test Summary: USD/JPY

Fig 5: Back Test Summary: USD/CHF

Fig 6: Back Test Summary: USD/CAD

Fig 7: Back Test Summary: EUR/GBP

Fig 8: Back Test Summary: EUR/JPY

!!Cautions!! In the end, I could not get unbroken cache data of AUD/USD 5 mins chart from Dukascopy server. That is why there is not sample back-test result of AUD/USD in this article. Accuracy of my handmade tester which was used for this research is worse than the default tester's "Ticks - Process all ticks". But more better than the default tester's "1 Minute - 4 ticks at OHLCs". And, of course, this result is not include trading fee. If you want to know the more realistic numbers, please do yourself. And give it me please...

Conclusions
• In long term view, I could say that SVA-Indicator was send us a good advice at all currency pairs (Fig 3 - 8).
• Especially, when you trading a EUR/USD, GBP/USD(Fig 3), USD/CHF(Fig 5), and EUR/GBP(Fig 7) pair, you could use the SVA-Indicator for improve your trading average gain pips.
• But, about the USD/JPY(Fig 4), USD/CAD(Fig 6), and EUR/JPY(Fig 8) pairs, it was not good in some years. So you needs to carefully to use this indicator at these currency pairs.
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