The graph shows Canadian Grain Commission planned spending, total authorities, and actual spending over the past several years. Trend analysis is challenging because Canadian Grain Commission revenues and expenditures are dependent on annual grain volumes and crop quality. These factors can fluctuate considerably from year to year and can result in significant variances between Canadian Grain Commission revenue and expenditure projections that are prepared 18 months in advance of a crop being harvested. Planned spending and total authorities have generally increased over time with inflation. There have been no significant program changes in recent years.