For reference, Schubert was writing dances already in his mid-teens. Those collected in D365 were probably written (improvised, repeated, reshaped, written down) in the five-year period before publication in 1821. The dances of D779 probably originated (mostly) between that time and 1825, as did the German dances of D783 (which appeared in the same year) and very likely the Wiener-Damen Ländler of D734, published a year later. The other large sets of waltzes published in Schubert's lifetime were D969, the Valses nobles, and D924 (Grazer Walzer), in 1827 and 1828, respectively.
# (key)--(key in source (date of source))
1 (C)--(B in 9 Ländler no. 1 (early 1823))
2 (C)--(B in 9 Ländler no. 2 (early 1823))
3 (G)--(G in 9 Ländler no. 3 (early 1823))
4 (G)--(G in 9 Ländler no. 4 (early 1823))
5 (Bb)
6 (Bb)
7 (g/Bb)
8 (D)--(D in 17 deutsche Tänze no. 1 (1823))
9 (D)--(D in 17 deutsche Tänze no. 2 (1823))
10 (G)
11 (G)
12 (D)--(D in 17 deutsche Tänze no. 6 (1823))
13 (A)
14 (D)--(D in 17 deutsche Tänze no. 8 (1823))
15 (F)
16 (C)
17 (C)
18 (Ab)
19 (Ab)
20 (Ab)
21 (Eb)
22 (Eb)
23 (Eb)
24 (g/Bb)
25 (G)
26 (C)
27 (Eb)
28 (Eb)
29 (Eb)
30 (C)
31 (a/C)
32 (C)
33 (Ab)--(Ab in 9 Ländler no. 7 (early 1823))
34 (Ab)--(Ab in 9 Ländler no. 8 (early 1823))