Use this tool when the user asks how a research topic has trended over time — 'is CRISPR funding growing', 'how many p53 grants per year', 'when did NIH start funding long COVID'. Returns yearly project-row counts plus recorded award totals for a title keyword match; multi-word queries AND their words in any order. For the grants themselves use search_grants; for whole-NIH dollars use funding_trend. Bounds: query is REQUIRED, 2-64 characters; fiscal years 1985-2100 with fiscal_year_start <= fiscal_year_end. Not paginated.