The grapefruit supply in Japan is projected to decline significantly from 53.76 thousand metric tons in 2024 to 31.73 thousand metric tons in 2028. This trend suggests a year-on-year decrease, with a particularly sharp decline each year. The compound annual growth rate (CAGR) between 2024 and 2028 demonstrates a substantial negative trend, indicative of shrinking supply.

Future trends to watch for include:

Consistent decrease in local production or imports leading to supply shortages.
Impact of changing consumer preferences on grapefruit demand.
Possible innovations or policy adjustments in agriculture to address declining supply.