Strapless apron dress

Namely: 2, 4, 6 and 8 years
Namely: 10, 12, 14 and 16 years

Difficulty: 1

yardage in 140cm wide:
0m75 for the 2 years,
0m85 for the 4 years,
0m90 for the 6 years,
1m for the 8 years,
1m for the 10 years,
1m10 for the 12 years,
1m20 for the 14 years,
1m30 for the 16th.