June 22 (LNGJ) - Shipping confidence reached its equal highest rating in the past three years in the three months to the end of May 2017, according to the latest Shipping Confidence Survey from international accountants and shipping advisers Moore Stephens. The average confidence level expressed by respondents to the survey was up to 6.1 out of 10.0 from the 5.6 recorded in the previous survey in February 2017. In the case of brokers, the confidence rating rose from 4.6 to 6.4, while for owners the increase was from 5.6 to 6.1. Confidence on the part of charterers and managers, meanwhile, was up from 5.9 to 6.4, and from 6.0 to 6.2 respectively. Concern persisted, however, over political uncertainty, over-tonnaging in certain trades, depressed oil prices and a potential dearth of quality seafarers.