Journal of Applied Mathematics / 2014 / Article / Tab 4

Research Article

Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

Table 4

Mine revenues over production period 2017–2021.

20172018201920202021

(mill’s USD) 2.279, 7.466 1.974, 7.360 1.672, 7.269 1.374, 7.192 1.079, 7.131