Spooky thing with that average of 74 cents is that only about 20% (going from memory when I last did it) of the time is it within +/-2 cents - rest of time oscillating from highs to lows
That 74 cents goes back to the 70'cs though - is only about 66 this century
First time I ventured out of the country I got US$1,30 odd for my NZ$