a negative clause after "not only"?
Solution 1:
Your sentence (as it stands now, without "also") is perfectly grammatical and clear.
You could emphasise the contrast with but it even fell, or (expressing more surprise) but it actually fell.
Your sentence (as it stands now, without "also") is perfectly grammatical and clear.
You could emphasise the contrast with but it even fell, or (expressing more surprise) but it actually fell.