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By taking this route , you will save some time and be close to sources of information . Continue until you have named two dozen sources of pride , or more . This work , informed by member needs and priorities , will include a careful assessment of current and projected sources of revenue and expense and a detailed consideration of the best elements in a refreshed multiyear strategy . Collectively , the three indexes use eight sources of component data that reflect output in terms of passenger-miles or ton-miles ( or some proxy thereof ) . In addition , the regional comparison reports are rich sources of information on the methodology applied .