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Marks used in our publications

Following marks are used in our publications:

a) the observed phenomenon does not exist.
b) when the phenomenon exists and has been registered, but no cases.
Two Dashes - - data cannot be shown
Two dots .. in place of decimal numbers less than half of the smallest available decimal number (which would otherwise require additional decimal digits).
Four dots .... the phenomenon exists, but data is unknown for some reason.
Cross hatch, number sign # The value is the defined ratio but the denominator is zero (Divison by zero).
Colon : Data statistically unreliable (less than 20 occurrences).
Double parenthesis ((123.4))
Parenthesis (123.4) Data statistically less reliable (20-49 occurrences).
Large dot Data statistically extremely unreliable
Phi Ø average
Percent sign % Percentage
Note 1) note sign - footnote (number followed by a bracket, in a superscript)
Number: zero point zero 0,0 values less than 0.5 of the unit of measure used
Asterisk, star * corrected data
Lowercase letter z z confidential data
Lowercase letter p p provisional data