Summary

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.

You are free:

• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue

Sources

The data are taken from:

• Ashley, Mike (2007). Gateways to Forever: The Story of the Science-Fiction Magazines from 1970 to 1980. Liverpool: Liverpool University Press. pp. 479-481. ISBN 978-1-84631-003-4.
• Ashley, Mike (2016). Science Fiction Rebels: The Story of the Science-Fiction Magazines from 1981 to 1990. Liverpool: Liverpool University Press. pp. 440-442. ISBN 978-1-78138-260-8.
• Ashley, Mike (2022). The Rise of the Cyberzines: The Story of the Science-Fiction Magazines from 1991 to 2020. Liverpool: Liverpool University Press. pp. 409-11. ISBN 978-1-80085-648-6.

Notes:

• Ashley's data comes from two sources: the annual statement of circulation published in the magazine, and additional data provided to Locus magazine each year starting in 2004.
• The data runs approximately from summer of one year through summer of the next year, so two year dates are given for each data point.
• No data is available for 1979-1980.
• Digital subscription numbers for the first few years are estimated.