Assertion: index's data | /r/HasProperty | available
Facets:
value: monthly
type: TEMPORAL
value: for national average
type: OTHER
Source sentences:
text: Index and price change data are available for the U.S. city average (or national average), for various geographic areas (regions and metropolitan areas), for national population-size classes of urban areas, and for cross-classifications of regions and size classes.
text: One reason for the difference in formulas is that not all the data needed for the Fisher-Ideal formula is available monthly even though it is considered superior.