 These initial sales were unprecedented for an LP and were cited by "Billboard" magazine as evidence of a new market trend in the US, whereby pop albums started to match the numbers of singles sold.The album was number 1 for six weeks in total; it remained in the top twenty until the start of July, before leaving the chart in mid December.As the more popular of the joint A-sides, "We Can Work It Out" became the Beatles' sixth consecutive number 1 on the "Billboard" Hot 100 chart, all of which were achieved over a twelve-month period from January 1965.