The content originally appeared on: CNN New York (CNN Business)America's rising prices were unrelenting in January. Another key inflation measure showed prices rising more than expected last month. Wheat and corn prices could jump if Russia invades Ukraine The producer price index, which tracks average price changes America's producers get paid for their goods and services over time, rose 9.7% in the 12 months ended in January, not adjusted for seasonal swings, the Bureau of Labor Statistics reported Tuesday. That […]