Given the growing economy, the total number of people employed rose from 8.5 million in 1995 to 13.5 million in 2011. This healthy increase of nearly 25% in the labor force lagged behind the increase in GDP during the same period (64%, see chart), which implies a significant increase in labor productivity. Official unemployment is very low: less than 30,000 job seekers were registered in government labor exchanges in 2005-2006 (0.3% of the labor force). Underemployment, on the other hand, is believed to be quite high, especially in agriculture, which accounts for fully 28% of all employed, many of them working part-time on tiny household plots. However, no reliable figures are available due to the absence of credible labor surveys.