It looks like you have broad match result data set for keywords and not exact match!!! Also for positioning you need to take in account that a percentage will click on position 1 to 10 (plus adds).. It varies for niche but its around 50-60% click position 1, 20-30% pos 2, 10-15% pos 3 ... etc... So factor that in as well as getting hold of the exact match data set!