Lesson 1 2
Lesson 2 50
Lesson 3 70
Lesson 4 130
Lesson 5 164
Lesson 6 194
Lesson 7 212
Lesson 8 224
Lesson 9 234
Lesson 10 262
Lesson 11 278
Lesson 12 292
Lesson 13 298
Lesson 14 310
Lesson 15 342
Lesson 16 362
Lesson 17 392
Lesson 18 410
Lesson 19 416