1. Three months of meth:
2. Unspecified amount of time:
3. One and a half years of meth:
4. Two years of meth use:
5. Two and a half years of meth:
6. Four years of meth:
7. Six months of meth:
8. Unspecified amount of time:
9. Six years of meth use:
10. Four years of meth use:
11. Unspecified amount of time:
