increased depth increased desire increased development increased diameter increased difficulty increased direct increased diversity increased domestic increased dose increased dramatically increased dramatically in recent years increased drastically increased drug increased due increased durability increased during the period increased earnings increased economic increased economic activity increased education increased effect increased effectiveness increased efficacy increased efficiencies increased efficiency increased effort increased efforts increased emissions increased emphasis increased employee increased employment increased endurance increased energy increased energy consumption increased energy efficiency increased engagement increased engine increased enormously increased enrollment increased enrolment increased environmental increased exercise increased expenditure increased exponentially increased export increased exports increased exposure increased expression increased external increased eye increased fat increased fatigue increased feelings increased financial increased fire increased five-fold increased fivefold increased flexibility increased flow increased fluid increased focus increased following increased food increased force increased foreign increased fourfold increased frequency increased friction increased fuel increased functionality increased funding increased further increased gas increased global increased glucose increased government increased government spending increased gradually increased greatly increased growth increased hair increased hardness increased health increased heart increased heart rate increased heat increased hepatic increased human increased humidity increased hunger increased immigration increased impact increased importance increased imports increased in increased in all increased in comparison increased in frequency increased in intensity