Jobless claims declined by 1,000 to 428,000 in the week ended June 25, the Labor Department announced Thursday. This was more than forecast, Bloomberg and the Wall Street Journal reported, and further indication that the labor market is not making any substantial improvement. First-time jobless claims have been above 400,000 since the week that ended April 9. This is, well above 375,000, the benchmark for sustainable job growth. The four-week moving average, a less volatile number that flattens out week-to-week fluctuations in the data, was 426,750, an increase of 500 from the previous week’s unrevised average of 426,250. The number of Americans filing for continuing unemployment claims during the week ending June 18 was 3,702,000, a decrease of 12,000 from the preceding week’s revised level of 3,714,000. The four-week moving average was 3,703,500, a decrease of 11,250 from the preceding week’s revised average of 3,714,750. The number of people claiming emergency unemployment benefits rose 1,471 to 3,300,706 in the week ended June 11, the most recent data available. The total number of people claiming benefits in all programs ending June 11 was 7,511,613, a decrease of 30,701 from the previous week. The largest increases in initial claims for the week ending June 18 were in California, Florida, Michigan, New Mexico, and Pennsylvania. The largest decreases were in Georgia, Illinois, Ohio, New York, and Texas.