Growth in output per hour of all persons, nonfarm business, seasonally adjusted, 1999 II-2001 I (percent change from previous quarter at annual rate) Percent change from previous quarter at annual rate 1999 II 0.2 1999 III 5.0 1999 IV 8.0 2000 I 2.1 2000 II 6.3 2000 III 3.0 2000 IV 2.0 2001 I -1.2