Add previous year to years updated monthly for assessed value open data asset#1001

wrridgeway wants to merge 5 commits intomasterccao-data/data-architecture:masterfrom

998-add-previous-year-to-years-updated-monthly-for-assessed-value-open-data-assetccao-data/data-architecture:998-add-previous-year-to-years-updated-monthly-for-assessed-value-open-data-assetCopy head branch name to clipboard