In order to ensure high inter-rater reliability for the interviews, a semi-annual monitoring and re-certification program was conducted.
The amount of the semi-annual bonus should increase with successive and 'favourable' examinations.
Monthly availability of information is rewarded with 1 index point, quarterly availability with 0.5 index points and semi-annual availability with 0.25 index points.
Quarterly data were initially collected and in the econometric analysis semi-annual averages were used.
We have also analyzed quarterly and semi-annual returns, but do not report them here to conserve space.
They were selected at each of the semi-annual elections.
In his semi-annual report, the governor reported that new neighborhood committees had been established in the capital city.
Against a semi-annual median of 13 isolates between 1993 and 2001, this number seemed unusually high.
