Table 1. Number of National Pools Analyzed According to WBC within Regions and Periodsa.
| L (N = 24) | LM (N = 54) | UM (N = 41) | H (N = 70) | Overall (N = 189) | |
|---|---|---|---|---|---|
| Region | |||||
| Africa | 17 (70.8%) | 13 (24.1%) | 2 (4.9%) | 32 (16.9%) | |
| Asia | 3 (12.5%) | 26 (48.1%) | 9 (22.0%) | 5 (7.1%) | 43 (22.8%) |
| CEE | 1 (4.2%) | 15 (27.8%) | 12 (29.3%) | 5 (7.1%) | 33 (17.5%) |
| GRULAC | 3 (12.5%) | 18 (43.9%) | 5 (7.1%) | 26 (13.8%) | |
| WEOG | 55 (78.6%) | 55 (29.1%) | |||
| Period | |||||
| 1985–1989 | 1 (4.2%) | 2 (3.7%) | 1 (2.4%) | 12 (17.1%) | 16 (8.5%) |
| 1990–1994 | 1 (4.2%) | 7 (13.0%) | 1 (2.4%) | 10 (14.3%) | 19 (10.1%) |
| 2000–2004 | 2 (8.3%) | 6 (11.1%) | 5 (12.2%) | 14 (20.0%) | 27 (14.3%) |
| 2005–2009 | 9 (37.5%) | 9 (16.7%) | 7 (17.1%) | 10 (14.3%) | 35 (18.5%) |
| 2010–2014 | 4 (16.7%) | 13 (24.1%) | 14 (34.1%) | 10 (14.3%) | 41 (21.7%) |
| 2015–2019 | 7 (29.2%) | 17 (31.5%) | 13 (31.7%) | 14 (20.0%) | 51 (27.0%) |
a
L = low income, LM = lower-middle income, UM = upper-middle income, H = high income.