At 0:04 Over the _____ that lasted couple of years

There is one word that I can't understand



It is hard to catch what he says at that point. To me it sounds like:

"over the ??? of the last couple of years"

A word that would fit in the blank is "course", but it doesn't sound like the word that he says begins with a "c" sound. It is possible that he fluffed his words, or, as he is not a native English speaker, used an inappropriate word at this point. On the other hand, it could be a valid word that I just can't catch.