How many different item appear enrollment column that had joined 1931, 1949 1?
Institution Location Nickname Founded Type Enrollment Joined
Northwest Conference
text text text real text real text
1-261941-1
Current members
Current members
George Fox University Newberg, Oregon Bruins 1885 Private/Quaker 3519 1996
Lewis & Clark College Portland, Oregon Pioneers 1867 Private/Non-sectarian 3433 1931, 1949 1
Linfield College McMinnville, Oregon Wildcats 1849 Private/Baptist 2664 1926
Pacific University Forest Grove, Oregon Boxers 1849 Private/United Church of Christ 3302 1926
Pacific Lutheran University Tacoma, Washington Lutes 1890 Private/Lutheran 3461 1965
University of Puget Sound Tacoma, Washington Loggers 1888 Private/Non-sectarian 2600 1926, 1996 2
Whitman College Walla Walla, Washington Missionaries 1859 Private/Non-sectarian 1475 1926
Whitworth University Spokane, Washington Pirates 1890 Private/Presbyterian 2886 1970, 1988 3
table_261941_1
SELECT COUNT Enrollment FROM table WHERE Joined = 1931, 1949 1
1931, 1949 1