Crack the Code!

The Mexican ambassador to Norway has been notified of her new posting. She will become ambassador to Bulgaria, and is looking forward to vacations on the famous Bulgarian beaches of the Black Sea. Before she moves to the embassy in Sofia, she asked the Home Office for some background reading about her new country. The data was sent encrypted, because of habit. Can you recover the plaintext from this xenocrypt?

Good luck!

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Frequency Distribution of Ciphertext


Frequency of Spanish (Ñ = 0.17%)

A joint project of Brendan Bard, Prof. Gregory Bard, and Prof. Seth Dutter, University of Wisconsin---Stout (January 30th, 2019)