I will start with 2011 wheat yeild. All Gp1

For 11 tph at 81 kg/hl Sold, matched the combine closely

2012

So far 8.46 tph at 71 kg/hl by the combine meter, not ajusted to this years low weights.

I think i need to reduce that figure by 12.3 % to match last years 81 kg wheat.

So that gives a yeild of 3 tpa.

33% less than 2011.

Should i represent mr ave, the Uk wheat yeild would be in the 10.5 to 11 million ton range.