I'll just give you some "knock" numbers from the SSR's 252 knock reports Continent wide.
65% in hours of darkness.
56% of those reports in hours of darkness come on times of the night when the moon is visible.
October is the most common month for a knock report, with a report in October being 32% more likely than any other month.
The numbers differ of course when narrowed down though by geographical area though and WA State where i look at a lot.
The Southern WA Cascades for example and its 31 reports.
76% in hours of darkness, a 17% increase on Continent wide reports.
36% of those reports in hours of darkness come on times of the night when the moon is visible, a 36% decrease on Continent wide reports.
June is the most common month for a knock report, with a report in June being 100% more likely than any other month.
Different strokes for different folks.
If anyone wants any State specific info on knocks, just shout and i'll add to the thread..