Exports are calculated from 1930 for Early Start

Export objectives are showing export in last year and estimated time to finish objective depend on that.

Fixed issue with export restriction for products from oil.

Fix for export names and research of Higher birth rate

Fix for export and import restrictions after 1991

Fix for counting imported prefab panels and fix for some resource names.

Small fixes to Export objectives window and changes to colors of not started, started and completed exports.

Small fixes to calculation of raw bauxite and one new notification added.