The number of Foreign Corrupt Practices Act enforcement actions and financial penalties declined sharply last year, but the federal government has signaled that it plans to bolster its efforts in pursuing corporate bribery cases, according to a new report by the law firm Jones Day.

In 2015, the Justice Department settled cases with only two companies and collected $24.2 million in penalties — far less than in 2014, when the agency brought 10 corporate enforcement actions and collected $1.25 billion.

Last year’s activity, the lowest since 2004, was attributed to fewer instances of cases stemming from corporations self-reporting suspicious behavior, a smaller number of big-dollar settlements and a focus on more complicated, higher value bribery cases, which take longer to investigate, according to the report.

In November, the Justice Department indicated that it planned to double the number of prosecutors focusing on such foreign bribery cases. That followed an announcement last March that the number of Federal Bureau of Investigation agents to look into such cases will be tripled, according to the report, the second one Jones Day has issued annually on the enforcement of the anticorruption law.