V21? How many

Well I finally decided to decode the fender tag from my 73' Duster 340. The car is beyond rough and now seeing V21 I think maybe I should do something with it. Can anyone give any numbers for V21 produced cars? BTW, thank you for the help FABO. You all rock! Here is the decode:

VS29:
Plymouth Valiant,Duster
Special
2 Door Sports Hardtop

H30: 340 240HP(net) 1-4BBL 8 CYL
1973
Unknown

XXXXXX: Sequence number

E55: 340 cid 4 barrel V8 275hp
D21: 4 Speed Manual Transmission
JA5: Dark Silver Poly Exterior Color
C6XW: Trim - Charger, Vinyl Bucket Seats, Black/White
000: Full Door Panels
B03: Build Date: November 03
488474: Order number

V1W: Full Vinyl Top, White
U: USA Specifications
B41: Front Disc Brakes w/Standard 10in RR Drum
C56: Bucket Seats
G11: Tinted Glass (all)
G33: LH Remote Racing Mirror

M21: Roof drip rail moldings
N41: Dual Exhaust
N42: Chrome Exhaust Tips
N95: Emissions Control
R11: Radio Solid State AM (2 Watts)
V21: Performance Hood Treatment

V6W: Longitudinal Stripes, White
V8W: Tranverse Stripes, White
26: 26in Radiator
END: End of Sales Codes