Food Basket Up 20% & Fuel Costs Up 30% With Interest Rates Risen Yet Inflation Rate Listed at 8% on Cheap China Goods?

Trump this morning posted a graph of the inflated prices of various food items, on average about a 20% rise for a basket of food, and fuel oil prices in the Northeast to heat homes have risen about 30%, plus interest rates have been rising, yet they say the inflation rate is 8%, an odd measure indeed.