Statements of Gratitude and Good Cheer from places around the World where I have been:
(in no particular order)

Language

Statement of Gratitude Statement of Good Health or Cheer
English Thanks
Thank You
Cheers
Italian Grazie (grat-zee or grat-zee-eh) A la salute

Salute

Cin cin

Spanish Gracias (gra-see-ahs) Salud

Salud, amor y pesetas y el tiempo para gustarlos!
(Which means "For love and money and the time to enjoy it")

French Merci (mail-see)

Merci boucoup

A votre saunte
Hebrew Toda L'chaim
Swahili Asante (Kenya)
Asante Sana
Shukrani(Tanzania)
Nashukuru
unakunyua  mbega mutoto

Mbega Mbega

Pombe, Pombe!

My own phrase which I repeated continuously while climbing Kilimanjaro:
Na ngu vu zakutosha nakwenda Uhuru leo! (which means "I am strong enough to climb to Uhuru(highest peak in Africa, the top of Kilimanjaro) today!"

Norwegian Takk Skoal (skal)
Japanese Arigato

Domo Arigato Gozaimasu

Campai!
(Always said with enthusiasm)
German Danka

Danka Schön

Prosit
Irish Go raibh mile maith agat
(good luck pronouncing this one)
Sláinte
Farsi Tashakkur Fee sihetak (Egypt)
Arabic Shukran Bismillah

Fi schettak

Portugese Obrigado A sua saude

Brazilian:
Saude. Viva. Felicidades. Una pro santo!