I'm quite new to this so I'm happy for someone to step in and prove me wrong, but my understanding is that gOHM does not increase in quantity, in increases in value. The value of gOHM is roughly (value of OHM) x (index), so currently one gOHM is worth 67.81 x 79.2 = $5370 (or thereabouts).
After the next rebase (assuming the price doesn't change) the value of one gOHM will be 67.81 x 79.3 = $5377 (or thereabouts). You gain value every rebase, rather than token quantity.
Unfortunately when the price drops considerably, this added value can be overlooked (or drowned out as the case may be!)