All Items - Total Index

[A_Ander]

Пожалуйста, помогите перевести фразу
the percentage increase in the most recently published 12-month rate of change in the OECD Consumer Prices All Items - Total Index for the United States.

Это пункт соглашения:
The Charges for each additional one-year term shall equal the Charges for the immediately preceding term plus a percentage of such Charges equal to the greater of (a) five percent (5%) or (b) the percentage increase in the most recently published 12-month rate of change in the OECD Consumer Prices All Items - Total Index for the United States

пункт (b) вызывает трудности, как правильно этот документ называется?
Заранее большое спасибо!