I've never seen figures for the US CUT market but maybe a less scientific method would be to look at how many used for sale show up someplace like Tractorhouse. Won't be accurate but it might be as close as you'll find. This is what it shows today for tractors 40hp and under:
KUBOTA (1465)
JOHN DEERE (1365)
MASSEY FERGUSON (624)
KIOTI (395)
NEW HOLLAND (385)
MAHINDRA (341)
INTERNATIONAL (239)
FORD (216)
BRANSON (182)
Of course somebody could maybe argue that people hate Kubota which is why so many used are for sale, or that people love Branson and never resell them, but I'd guess the truth is closer to what you see above.
KUBOTA (1465)
JOHN DEERE (1365)
MASSEY FERGUSON (624)
KIOTI (395)
NEW HOLLAND (385)
MAHINDRA (341)
INTERNATIONAL (239)
FORD (216)
BRANSON (182)
Of course somebody could maybe argue that people hate Kubota which is why so many used are for sale, or that people love Branson and never resell them, but I'd guess the truth is closer to what you see above.