E-commerce sales grew 13% year-over-year to $50.2 billion, marking the fourteenth consecutive quarter of positive year-over-year growth and tenth consecutive quarter of double-digit growth, according to comScore.

Despite the backdrop of continued economic uncertainty, 2012 was a strong year for retail e-commerce, according to comScore’s “2013 U.S. Digital Future in Focus” report.

A report released by comScore found that retail e-commerce sales in the U.S. rose to $186.2 billion in 2012, an increase of 15% and the strongest annual growth rate since before the recession.

A report released Friday by comScore showed that holiday online spending grew 14% year-over-year to $42.3 billion, as individual shopping days reached record spending levels.

comScore reported that the most recent week achieved record-setting levels of online spending, eclipsing $7 billion in sales for the first time ever.

Survey results released by comScore revealed that the most recent work-week saw four individual days eclipse $1 billion in spending, led by Green Monday with $1.275 billion.

In a report released by comScore, Green Monday has emerged as the third heaviest online shopping day of the holiday season to date, reaching $1.275 billion in spending.

For the holiday season-to-date, $26.6 billion has been spent online, up 13% versus the corresponding days last year, according to comScore.

Online holiday spending reached $21.4 billion for first 32 days of the November-December shopping season, up 14% year-over-year, according to comScore.

Spending on Cyber Monday reached $1.46 billion, up 17% versus a year ago, making it the heaviest online spending day in history, according to comScore.

Online retail spending for the November – December period will reach $43.4 billion, a 17% gain versus year ago, according to comScore.

Online retail spending in the United States reached $41.9 billion in the third quarter, up 15% versus year ago, according to comScore.