Consumers are most likely to click through emails sent by retailers in October, and least likely to unsubscribe from email lists in December, according to a recent report from Retention Science.

The report was based on an analysis of 1 billion emails sent by a cross-section of retailers over the past two years. Results were normalized to account for varying sample sizes.

The campaigns involved retailers in the specialty goods, apparel, baby products, and wellness verticals, among others.

Below, key findings from the report.

Click-Through Rates by Month

Email click-through rates are highest in October and November, on average, and lowest in March.

Unsubscribe Rates by Month

Email list unsubscribes are lowest in December, on average, and highest in July.

Conversion Rates by Month

Email conversion rates are highest in July and December, on average, and lowest in January and February.

About the research: The report was based on an analysis of 1 billion emails sent by a cross-section of retailers over the past two years.