There is no minimum purchases required to reach Sunrise.
To reach Golden Glow, a minimum purchase of $250 in the last 12 months is required.
To reach Peak of the sun, a minimum purchase of $350 in the last 12 months is required.
To keep your status the following year, you need to spend the minimum amount required to stay in the tier. Otherwise, your status will drop one or two tiers below.
For exemple: You spent the required $350 to reach Peak of the Sun on May 1st 2023. To keep your status, you will need to spend another $350 between May 2nd 2023 and May 1st 2024.