| Date | Location | Measurement | g-Factor | % Deviation |
(1) | May 29, 1919. | Sorbal | a | | |
(2) | | Principe | a | | |
(3) | Sept. 21, 1922. | Austrilia | b | | |
(4) | | | c | | |
(5) | | | | | |
(6) | | | e | | |
(7) | May 9, 1929. | Sumata | f | | |
(8) | June 19, 1936. | USSR | g | | |
(9) | | Japan | h | | |
(10) | May 20, 1947. | Brazil | i | | |
(11) | Feb. 25, 1952. | Sudan | j | | |
(12) | June 30, 1973. | Mauritania | k | | |
| Weighted Mean | | | | |