What the sum of Total Regions have the Year 1954 one , and a Nebo greater than 447?
Year Total Region Belyando Broadsound Nebo
Isaac Region
12536848
real real real real real
2-12536848-1
Population
Population
1933 4,971 2,987 1,590 394
1947 5,016 3,067 1,415 534
1954 5,088 3,104 1,537 447
1961 5,367 3,253 1,539 575
1966 5,101 2,997 1,625 479
1971 7,200 4,834 1,589 777
1976 11,389 7,210 3,379 800
1981 15,522 7,700 6,908 914
1986 22,133 11,362 8,419 2,352
1991 22,188 11,082 8,472 2,634
1996 20,703 10,755 7,486 2,462
2001 19,013 9,883 6,601 2,529
2006 19,820 10,455 6,843 2,522
SELECT SUM Total Region FROM table WHERE Year = 1954 AND Nebo > 447
1954 447