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647.5
738.2
759.1
845.5
1,017
1,197
1,595
2,044
2,373
2,754
1918
1935
1944
1956
1963
1969
1979
1989
2000
2010
400
600
800
1,000
1,200
1,400
1,600
1,800
2,000
2,200
2,400
2,600
2,800
3,000