Then New York (state) and Colorado with $11.10 per hour. The next highest state wage rates are in Arizona, California, and Maine at $11.00 per hour, and then Vermont at $10.78 per hour. In addition to federal and state minimum wage laws, the US also has citywide minimum wage laws ($15.59 in San Francisco). According to the Economic Policy Institute, the minimum wage in the United States would have been $18.28 in 2013 if the minimum wage kept pace with labor productivity. To adjust for increased rates of worker productivity in the United States, raising the minimum wage to $22 (or more) an hour has been presented. International Labour Organization insists "minimum wage fixing" for rights of labours and has adopted Minimum Wage-Fixing Machinery Convention, 1928, Minimum Wage Fixing Machinery (Agriculture) Convention, 1951 and Minimum Wage Fixing Convention, 1970 following up these former Conventions.