21.  An unknown number may have been Congolese citizens who had sought refuge under the Tutsi-dominated government in Rwanda.

22.  An unknown number of customer calls are lost in the confusion.

23.  An unknown number of men were culled and killed.

24.  An unknown number of Micropolis employees in Singapore were also let go.

25.  An unknown number of other people went to hospitals on their own.

26.  An unknown number of people on the street were arrested.

27.  An unknown number of people, by some evidence in the millions, have died as a result.

28.  An unknown number of soldiers have died fighting the floods.

29.  An unknown number of the troops took pay cuts when they were activated in November and pulled away from their jobs, families and studies.

30.  An unknown number of those ballots have yet to be returned.