Symbols used to describe numbers
p (superscripts) Provisional, for ex. 324p
(number) Relative statistical reliability, for ex. (324)
Symbols used when numbers are indicated
X Not indicated to protect confidentiality
() Not indicated due to inadequate statistical reliability
... Unknown since data has not (yet) been gathered or calculated
* Not indicated because data was not important or applicable
The symbol «-» means zero and is used when numbers have been rounded.
Other symbols are also used when needed. Their meaning is explained in the tables where they appear.