Hi
@Dody
You recently reported a significant decrease in your RMV from 20 to 11 L/min and you don't have many dives. It is most useful to have an average RMV representing the breadth of dives you do and the conditions you encounter. The variation around the average also helps in choosing what gas consumption to use in planning calculations. Examining your dives with the highest gas consumption helps identify the factors that are most important for you.
I have my RMV for nearly all of my last 1500+ dives and my RMV is 0.36 +/- 0.04 cu ft/min (mean +/- std dev). Sorry for the imperial units, it's what I use. So, 95% of my dives have an RMV between 0.28 and 0.44 cu ft/min. For me, I know that strenuous exertion and thermal stress, due to cold, are the most important determinants of my gas consumption. For routine gas planning, I use an RMV of 0.45-0.5 cu ft/min, the higher value if I expect exertion and/or cold. For emergency planning, I use twice my average RMV. For example I dive a 19 cu ft pony, and know that I would spend a minute at depth, make a normal ascent with a 3 min safety stop, from 130 ft.
Continuing to monitor your RMV will be helpful in your future diving.