cost can be decreased vs cost can be diminished

Some examples from the web:

• cost can be decreased
• Some of the cost can be decreased by sharing a container with another customer.
• Thanks to this contribution, the cost for all participants can be decreased to € 215.00 (from 22 August night to 27 August lunch), from the previously announced € 275.00.
• Overall employment costs decreased considerably, although average wages remained stable.
• As transportation technology improved, travel time and costs decreased dramatically between the 18th and early 20th century.
• Furthermore, in absolute terms labour costs decreased since 2002.
• During the period, this cost decreased by 6 %.
• Consistently with the strategic guidelines aimed at cost containment, operating costs decreased by 7.2% as a result of effective interventions which modernised processes and improved productivity.

Some examples from the web:

• cost can be diminished
• Many business owners who started taking credit card payments claim that their income has doubled while overhead costs have diminished.
• The average cost for feu is diminished of the
• 16% coming down to 1.816 dollars.
• However the most elevated volumes than loaded they have increased I use it of the ability to our ships and this has diminished our costs and has improved our efficiency.
• Hume could have deduced from the closing down of European mines that not only the quantity of gold and silver grew during the sixteenth and seventeenth centuries, but that simultaneously their cost of production diminished.
• In the first trimester of this year the revenues are piled to 918 million dollars, with an increase of the 6.1% on the first three months of 2012, while the operating costs are diminished of 1.2% attesting itself to 894 million dollars.
• In the first six months of this year the revenues, pairs to 8,1 billion dollars, have turned out almost stable, while the operating costs are diminished of the