outer quintiles gen.

[sura]

Помогите, пожалуйста, перевести (понять смысл происходящего)
forecasts for higher order categories (e.g. outer quintiles),and exchange of additional variables in indices

Контекст:
In this context, the Commission requested the OPAG on DPFS to further address: (a) the hindcast exchange; (b) the exchange of forecasts with longer lead-time than 1 month; (c) the provision of forecasts for higher order categories (e.g. outer quintiles), and exchange of additional variables in indices;

Спасибо заранее