Table:
text: Taymyr Autonomous Okrug
Demographics
Vital statistics
blank Average_population_x_1000 Live_births Deaths Natural_change Crude_birth_rate_per_1000 Crude_death_rate_per_1000 Natural_change_per_1000_
1998 40 498 368 130 12.6 9.3 3.3
1999 39 448 376 72 11.6 9.7 1.9
2000 38 460 438 22 12.0 11.4 0.6
2001 39 562 438 124 14.5 11.3 3.2
2002 39 608 397 211 15.5 10.1 5.4
2003 39 625 386 239 15.9 9.8 6.1
2004 39 637 345 292 16.5 8.9 7.6
2005 38 548 369 179 14.5 9.7 4.7
2006 37 540 347 193 14.5 9.3 5.2

Question: What is the only year of the Taymyr Autonomous Okrug with 460 live births?