Growth in output per hour of all persons, nonfarm business, seasonally adjusted, 1998 II-2000 I Percent change from previous quarter at annual rate 1998 II 1.0 1998 III 3.2 1998 IV 4.1 1999 I 2.7 1999 II 0.5 1999 III 5.0 1999 IV 6.9 2000 I 2.4