I have data going back to 2009 in a spreadsheet, and some stuff back to 2005 in more scattered form - it's all on the pages for each year linked from the Hugo history page.
When you say number of works nominated, you mean number of works which are in the extended stats, right? Unfortunately all they have to do is list at least the top 5 works or ones which got more than 15%, so all we can really say from these stats is that the nominations may be getting slightly more spread out and slightly fewer items are hitting the 5% threshold. Here's a graph of top 20 nominees from the past 6 years: http://i.imgur.com/3uys3Lv.png and it's actually pretty consistent what proportion of the vote the top nominees are getting, even as voter numbers increase. Except for dramatic presentation, which is really weird (I've truncated the scale at 50%, but in BDP you get films nominated by >50% of nominators).
I don't think there's that much historical data on total number of works nominated in a category, although there's a few scattered bits and pieces in the stats in recent years. Looking at novel, in 2015 we have 1827 ballots and 587 works,in 2014 there were 1595 ballots and 648 works, in 2013 there were 1113 ballots and 475 works, and in 2009 639 ballots and 335 works.
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timeasmymeasure
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Date: 2015-05-01 08:43 pm (UTC)When you say number of works nominated, you mean number of works which are in the extended stats, right? Unfortunately all they have to do is list at least the top 5 works or ones which got more than 15%, so all we can really say from these stats is that the nominations may be getting slightly more spread out and slightly fewer items are hitting the 5% threshold. Here's a graph of top 20 nominees from the past 6 years:
http://i.imgur.com/3uys3Lv.png
and it's actually pretty consistent what proportion of the vote the top nominees are getting, even as voter numbers increase. Except for dramatic presentation, which is really weird (I've truncated the scale at 50%, but in BDP you get films nominated by >50% of nominators).
I don't think there's that much historical data on total number of works nominated in a category, although there's a few scattered bits and pieces in the stats in recent years. Looking at novel, in 2015 we have 1827 ballots and 587 works,in 2014 there were 1595 ballots and 648 works, in 2013 there were 1113 ballots and 475 works, and in 2009 639 ballots and 335 works.