 As a continuing part of the social pact, and even more as the result of a fierce union-government battle, President Callejas announced in 1991 a 27.8 percent increase over a minimum wage that the government had earlier agreed upon.That increase was in addition to raises of 50 and 22 percent set, respectively, in January and September 1990.Despite those concessions, the minimum daily rate in 1991 was only $1.75 for workers employed by small agricultural enterprises and $3.15 for workers in the big exporting concerns; most workers did not earn the minimum wage.