The phrase "a week has increased" is not correct in standard written English.
It may be intended to convey that something has increased over the course of a week, but the phrasing is awkward and unclear.
Example: "The number of participants in the study has increased over the past week."
Alternatives: "over the week, there has been an increase" or "in the past week, there has been a rise".
Since 2001, the number of people providing between 20 and 49 hours of care a week has increased by 43% and those providing 50 hours of care or more a week has increased by a third.
The number of households using a charity at least once a week has increased by 500,000 since 2014, with single parent households being the most frequent users.
The most recent Sport England Active People Survey, published last December, found the number of people playing sport once a week has increased by only 200,000 since London 2012.
The average annual cost for an older person who pays for 10 hours of home care and receives five meals on wheels a week has increased to £7,900 a year – up almost £740 since 2009-10 – anursinging homes now cost an average of £36,000.
The prevalence of Swedes that exercise more than twice a week has increased more than ten percent during the last decade, whereas the prevalence of Swedes that do not exercise has decreased only slightly[ 33].
The grassroots funding body said that the number of adults playing sport at least once a week had increased by 750,000 in the past year.
The inertia and the momentum of a series that every week has increased its mass, sometimes over the course of years, make it difficult to steer.
The number of disabled people now playing sport each week has increased by 62,000 to a record high of 1.67m.
The upheaval in Chinese stock markets this week has increased fears about economic growth prospects in the far east.
The report also showed that the proportion of people watching BBC One in a typical week had increased over the five years from 2006, from 77% to 79% in 2011.
The likelihood of North Korea conducting a fifth nuclear test, possibly within weeks, had increased because of a failed missile launch on Friday that was an embarrassing setback for leader Kim, South Korean officials and international experts said.
