George Kyparisis owns a company that manufactures sailboats. Actual demand for​ George's sailboats during each of the past four seasons was as​ follows: Season 1 2 3 4 Winter 1,400 1,240 1,080 920 Spring 1,520 1,420 1,640 1,540 Summer 1,000 2,140 2,040 1,960 Fall 600 750 650 520 George has forecasted that annual demand for his sailboats in year 5 will equal 6,500 sailboats.  Based on the given data and using the multiplicative seasonal​ model, the demand level for​ George's sailboats in the spring of year 5 will be nothing sailboats ​(enter a whole number).

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