The biggest upward pressure came from the softer drop in food bills, a smaller fall in recreation and culture costs and higher clothing and footwear prices.
Fruit, bread and cereals and meat saw prices rise in March, compared with falls a year ago, which acted as a drag on the overall food category.
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The headteacher of Saffie Rose Roussos's primary school has paid tribute to the little girl who was "beautiful in every sense of the word".
Ten people have died on the mountain so far this climbing season - four more than mountaineering officials expect in a typical year.