netdania volume and calculating silver price?

[1974silverboy]

Hi John, I am new here but have been posting to your youtube videos using the same name, and would like to thank you for all your work here. I have a question which I dont know if you have been asked before but im trying to work this out and would like to know your thoughts on it.
Ok. I have netdania on my phone and am regularly watching the silver market on it. I also regularly visit sgtreport.com and can see the silver production counter there. Is it acurate? I am guessing at say 800 million oz of silver mined in a year including scrap recycling, am I anywhere close in this figure or is it higher? Then the volume figures on net dania, is this figure in contracts cumulatively through the day? Each contract is 5000 oz yes?
Now this is where im going -
Take say 800 million oz mining and scrap silver supply per year and divide by 365 gives 2.19 million oz per day.
2.19 million divide by 5000 gives 438 contracts of physical silver to the market each day. Yet netdania on friday showed over 216k contracts!
So, divide 216,000 by 438 gives 493...
493 times the amount of daily physical silver traded on friday..
493 x 18.40 current gbp spot price = £9071

Is it that easy assuming my daily supply figures are correct? If so this is shocking manipulation.