In your first post you didn't mention anything about her current job; I thought your concern was that her income last year was not enough even though her income this year is sufficient.
Anyway, minimum wage would be about $15000/year. For a household size of two the income requirement is $18,913 (but more in Hawaii or Alaska).
What about her assets? If she's a US citizen sponsoring you to immigrate, every $3 of your combined assets will offset the income requirement by $1. Her income is about $4000 below the requirement, so multiply that by 3 which would mean $12000 of assets are required.