About 680 thousand puffs so far (40 x 365 x 47). Also, "When the team initially switched Voyager over to the trajectory correction thrusters six years ago, the tube opening was 0.01 inches (0.25 millimeters) across".
Probably ounces ("oz") for something like this, so around 0.005 oz then. The original 100 kg is equivalent to 220.5 lbs (which is pronounced "pounds", of course).
