Investigator | Country | Year | No. | Total % | Drain % |
De Campos JR [1] | Brazil | 2003 | 378 | 2.4 | 1.8 |
Rex LO [4] | Sweden | 1998 | 1152 | - | 1 |
Gossot D [5] | France | 2001 | 467 | 2.5 | 0.8 |
Chen Y [24] | China | 2008 | 20 | - | 10 |
GeorghiouGP [27] | Israel | 2004 | 176 | - | 2.3 |
Licht PB [37] | Denmark | 2004 | 158 | 25 | 6 |
Dumont P [41] | France | 2004 | 124 | 7.2 | 2.4 |
Baumgartner FJ [49] | USA | 2003 | 309 | 1.3 | 0.3 |
Lin TS [46] | Taiwan | 2001 | 2200 | 0.45 | - |
Schmidt J [47] | Germany | 2006 | 178 | - | 2.2 |
Michael O [50] | UK | 2006 | 179 | - | 7.7 |
Rathinam S [51] | UK | 2008 | 100 | - | 5 |