AI Analysis: Tobacco, sales and inventories, monthly production

Executive Summary

Statistics Canada's Table 16100044 tracks monthly tobacco production, sales, and inventories across 5 product categories from January 2004 to December 2025, revealing a clear long-term decline in Canadian cigarette consumption and production from a peak in mid-2004. Cigarettes overwhelmingly dominate the dataset, with average monthly domestic sales of ~1.87 million (thousands of units) and inventories regularly exceeding 2.5 million, while other tobacco categories remain comparatively minor. The data shows strong internal consistency — particularly between production and sales metrics — confirming that Canadian tobacco manufacturing has closely tracked falling consumer demand over the past two decades.

Key Findings

• Cigarette production peaked dramatically in mid-2004, with November 2004 reaching 3,801,400 units (z-score of 3.50), roughly double the long-term monthly average of ~1.77 million units, and has trended steadily downward since.
• Domestic cigarette sales declined from a high of ~3.2 million (thousands) to a low of ~928,000 over the 2004–2025 period, reflecting a significant long-term contraction in Canadian cigarette consumption.
• 20 out of 264 monthly cigarette production records were flagged as statistical outliers using the IQR method, with all major outliers concentrated in 2004, suggesting an unusually high-production period at the start of the dataset.
• Cigarette Opening and Closing Inventories are very strongly correlated (r = 0.940), and Manufactured Tobacco Production and Total Sales are tightly linked (r = 0.939), indicating that production closely tracks market demand.
• Non-Manufactured Tobacco and Cigarette metrics show very weak correlations (~0.22–0.24), confirming that these two product segments operate independently within the Canadian tobacco market.
• 70 negative value entries exist across the dataset — out of 3,864 non-null records — likely representing inventory corrections or accounting adjustments rather than actual negative production or sales.
• The dataset contains 5,165 missing values and a heavily right-skewed value distribution, with a mean of ~504,783 but a median of 0, driven by many zero-value entries across niche product categories such as pipe tobacco and cigars.