Spectrum has been superseded by The Journal from September 2023 onwards.
The entries in red below indicate periods during Covid when production was not possible and there is no edition available.
2023 Feb – Mar – Apr – May – Jun – Jul-Aug – the FINAL EDITION
2022 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov– Dec-Jan
2021 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov– Dec-Jan
2020 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov– Dec-Jan
2019 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2018 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2017 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2016 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2015 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2014 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2013 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan – Supplement
2012 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2011 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2010 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2009 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2008 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan
2007 Feb – Mar – Apr – May – Jun – Jul-Aug – Sep – Oct – Nov – Dec-Jan