Girl's Day is a girl group formed by Dream T Entertainment in 2010 as 5 members but currently as 4 members Sojin, Yura, Minah, and Hyeri, the group has sold more than 159K physical copies combined between South Korea and Japan.
Here is a summary of their sales in both countries.
Korean Discography: 140,005 copies sold
Everyday
Format: 1st Mini Album
Release Date: July 6th, 2011
1st Month Sales (Gaon): 7,382 copies sold (#16)Total Sales in South Korea (Gaon): 10,437 copies sold
10,437 copies sold
EverydayⅡ
Format: 2nd Mini Album
Release Date: April 18th, 2012
1st Month Sales (Gaon): 5,907 copies sold (#21)Total Sales in South Korea (Gaon): 6,256 copies sold
9,716 copies sold in 2012
721 copies sold in 2013
기대
Gidae
Expectation
Format: 1st Full Album
Release Date: March 14th, 2013
1st Month Sales (Gaon): 8,866 copies sold (#9)
Total Sales in South Korea (Gaon): 15,636 copies sold
13,431 copies sold in 2013
1,808 copies sold in 2014
397 copies sold in 2015
여자 대통령
Yeoja Daetongryeong
Female President
Format: Repackage Album
Release Date: June 24th, 2013
1st Month Sales (Gaon): 5,501 copies sold (#16)
Total Sales in South Korea (Gaon): 16,697 copies sold
11,152 copies sold om 2013
4,998 copies sold in 2014
547 copies sold in 2015
Girl's Day Everyday III
Format: 3rd Mini Album
Release Date: January 3rd, 2014
1st Day Sales (Hanteo): 596 copies sold
1st Week Sales (Hanteo): 2,208 copies sold
1st Month Sales (Gaon): 9,593 copies sold (#12)
Total Sales in South Korea (Gaon): 22,028 copies sold
20,814 copies sold in 2014
1,214 copies sold in 2015
Girl's Day Everyday #4
Format: 4th Mini Album
Release Date: July 14th, 2014
1st Day Sales (Hanteo): 1,200 copies sold
1st Week Sales (Hanteo): 4,879 copies sold
1st Month Sales (Gaon): 16,667 copies sold (#10)
Total Sales in South Korea (Gaon): 26,330 copies sold
23,773 copies sold in 2014
2,557 copies sold in 2015
Girl's Day Love Second Album
Format: 2nd Full Album
Release Date: July 6th, 2015
1st Month Sales (Gaon): 28,499 copies sold (#10)
Total Sales in South Korea (Gaon): 31,320 copies sold
30,212 copies sold in 2015
1,108 copies sold in 2016
GIRL'S DAY EVERYDAY #5
Format: 5th Mini Album
Release Date: March 27th, 2017
1st Month Sales (Gaon): 9,982 copies sold (#15)
Total Sales in South Korea (Gaon): 11,301 copies sold
11,301 copies sold in 2017
Japanese Discography: 19,209 copies sold
Girl's Day Best Album (JAPAN LIMITED ver.)