Sunspot Cycle 24 update for year-end 2013

Note the source of the sunspot data is:-

WDC-SILSO, Royal Observatory of Belgium, Brussels.

The Royal Observatory of Belgium have updated their website and it is now possible to download the sunspot data in a csv file format.That saves a lot of time for people who want to use the data in  spreadsheets, thank you to the good folk at that institution.

Progress of the sunspot cycle 24.

Note that by year-end the sunspot cycle did not come to a close as the sun is still merrily firing away on all cylinders. So, at this stage we are still experiencing sunspot cycle 24. It appears as if this cycle is going to a bit longer than the forecasts made by some experts, and given the complexity of the issue, that should come as no surprise.