I'm going to add a complication though!
Remember , it's a US data base. They have used a different method of analysis to the UK So in the UK carbs are chemically analysed, in the US the fats and proteins are chemically analysed and the carbs are recorded 'by difference' ie what's left.
More importantly, in the US they include fiber as a part of the total carb (different method of analysis again may be used
You will therefore get different figures if you compare data from different countries.
You just have to make sure that you don't inadvertently mix and match and compare a UK carb figure with a US total carb figure.
So for your almonds (I used blanched because there was a straight comparison)
the US data base gives 18.67g total carbs of which 9.9 are fiber If you deduct the fiber from the total carb then this gives a figure or
8.77g carbs
An older copy of McCance and Widdowson's , the UK 'bible' gives
6.9g of carbohydrate and 7.4 g of Non Starch Poly Saccharide (ie most fibre)
The comparative figures are 8.77g and 6.9g ( The difference probably accounted for by the methods and even the source of the almonds used )
I think that the authors of carbs and cals as UK dietitians would use the UK data. I believe that the book Carb, calorie and fat bible is also based on British data.
The archived copy of Widdowson's I used can be downloaded in excel form but isn't friendly to use like the US data base and is undoubtedly dated . There is a newer version but not online..
http://tna.europarchive.org/2011011...od.gov.uk/science/dietarysurveys/dietsurveys/
(just to complicate things the UK now accepts 2 methods for analysis of fibre on food labels but won't go into that)