Gathering Speed

The Economic Research Upgrade:  Gathering Speed boosts the Gathering Speed for the players army when gathering resources on resource tiles.

Level	Gathering Speed Boost
1	+1%
2	+3%
3	+6%
4	+10%
5	+15%
6	+21%
7	+28%
8	+36%
9	+46%
10	+66%