New import tariffs imposed in March 2014 made Luanda even more expensive. As an example, a half-litre tub of vanilla ice-cream at the supermarket was reported to cost US$31. The higher import tariffs applied to hundreds of items, from garlic to cars. The stated aim was to try to diversify the heavily oil-dependent economy and nurture farming and industry, sectors that have remained weak. These tariffs have caused much hardship in a country where the average salary was US$260 per month in 2010, the latest year for which data was available. However, the average salary in the booming oil industry was over 20 times higher at US$5,400 per month.