whats the frequency of the letter n in:
natural history: the catalina goby is found on rocky ocean areas and hides among the rocks when threatened. it is found on the rocky west coast of north america, often with the zebra goby (lythrypnus zebra). it is a cold-water species that prefers temperatures no higher than 72°f. it is reported to hide among the spines of long spined sea urchins when threatened.
husbandry: the catalina goby is territorial and may be aggressive toward its own species, but not toward unrelated species. it is not a reef animal, since it is from the eastern pacific which is cold and has no reefs. it is reported to be adaptable and survive in aquaria up to 78?f.

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The given text has thirty-seven "n"s.
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