user: Question: What is the average # Of National Votes, when the Election is before 1992, when the % Of Prefectural Vote is 39.5%, when Leader is takeo fukuda, and when # Of Seats Won is greater than 63?
Columns: ['Election', 'Leader', '# of seats won', '# of National votes', '% of National vote', '# of Prefectural votes', '% of Prefectural vote']
Types: ['real', 'text', 'real', 'real', 'text', 'real', 'text']
Sample row: [1956.0, 'Ichirō Hatoyama', 61.0, 11356874.0, '39.7%', 14353960.0, '48.4%']
SQL:

assistant: SELECT AVG("# of National votes") FROM "Table" WHERE "Election" < 1992.0 AND "% of Prefectural vote" = '39.5%' AND "Leader" = 'takeo fukuda' AND "# of seats won" > 63.0;