I played around with the KCBS numbers from 2016, USA only. I may have missed a number or two. I was curious, because I heard some folks at a comp saying that time of the year influences scoring.
Busiest months -- June, September
Highest GC score for the year – 712.5944, MO
Lowest GC score for the year -- 658.2856, NY
I averaged the GC scores for each month, throwing out January, February, March, November, and December due to too few data points.
I was surprised. Points varied very little month to month, with all average GC scores in the 690s. October had the highest average -- 697. May had the lowest average -- 692. So it looks like the cooks git'er done in the dog days of summer.
I'm going to look at scores vs. prize money next.