19961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018
n/an/an/an/an/an/an/an/an/an/an/a5,222,0005,298,0005,138,0005,317,0005,446,0005,565,0005,690,0005,829,000n/an/an/an/a
$40,561,097,268$41,788,234,743$43,150,218,825$43,681,018,913$47,082,059,053$49,471,033,004$54,514,774,176$59,872,039,075$65,137,136,609$70,248,954,231$70,400,094,036$76,110,287,242$85,152,823,734$97,143,696,472$108,635,000,000$122,859,000,000$120,405,000,000$142,822,000,000$161,229,000,000$167,210,000,000$173,686,000,000$180,591,000,000n/a
n/an/an/an/a26,403,703n/an/an/an/a24,256,799.79n/a23,701,353.7823,333,968.1722,972,246.2222,568,578.3222,149,469.1722,234,453.8921,882,153.0621,894,285.6721,578,655.220,293,064.9n/an/a
n/an/an/an/a5.6%n/an/an/an/a5.8%5.9%5.7%6.1%6.5%6.7%7.0%7.2%7.3%7.2%6.9%6.9%6.9%n/a
n/an/an/an/a2.9%3.6%4.7%5.0%4.6%4.0%3.8%3.8%4.6%8.1%8.7%8.3%7.0%6.6%5.3%4.6%4.3%3.7%3.5%
n/an/an/an/an/an/an/an/an/a$33,973$34,437$36,053$36,779$35,402$35,367$35,821$36,264$36,381$36,927$38,334$39,494$40,577n/a
n/an/an/an/an/an/an/an/an/a26.2%26.8%26.9%25.1%25.6%25.5%26.2%26.6%28.5%28.7%28.9%29.3%29.5%n/a
n/an/an/an/an/an/an/an/an/a78.3%77.7%77.3%77.8%76.4%75.5%74.6%74.8%74.5%75.2%75.9%75.9%76.5%n/a