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Table 2 Total Number of Calls, with % Differences, Divided (a) by lunar month, (b) Weekdays, and (c) New Moons near to Nodes.

From: Sex difference in response to stress by lunar month: A pilot study of four years' crisis-call frequency

a) Lunar month Male Female % female/male difference
New moon, lunar Days 13–19 9,188 8,834 -3.8
Others 30,988 27,055 -12.7
change in sex-ratio    8.9
b) Days of week    
Thursdays & Fridays 11,268 10,723 -4.8
Saturdays & Sundays 12,073 10,058 -16.7
change in sex-ratio    11.9
c) 'Strong moons'    
New moon, lunar Days 13 – 19 4,319 4,345 +0.6
Others 14,965 13,196 -11.8
change in sex-ratio    12.4