上升(v.)：increase, rise, climb, ascend, surge, shoot up
下降(v.)：decrease, decline, drop, fall, descend, plunge
持平(v.)：remain stable, keep constant, level off, flatten out
波动(v.)：fluctuate, wave, go up and down
快速(adj./adv.)：considerable/considerably, significant/significantly, substantial/substantially, remarkable/remarkably, dramatic/dramatically
稳步(adj./adv.)：steady/steadily, stable/stably, moderate/moderately, modest/modestly
缓慢(adj./adv.)：slight/slightly, minimal/minimally, marginal/marginally
趋势 (n.)：trend/ tendency
eg: he demonstrators were outnumbered by the police
eg: The figure has tripled.
eg: The price of houses has virtually doubled over the past few years.
Mount to (v.)：达到
eg: this product is better than its counterparts
百分比(n.)：proportion, rate, percentage, share
占据 (v.)：occupy, comprise, constitute, account for, represent.
数字：number, amount, data, figure
比例：rate, proportion, percentage, share
大约：roughly, about, nearly, approximately, a little less than, slightly more than
各自地：respectively, for each