/* Target the 6th row (n+6) and every row after it */
.views-row:nth-child(11) .submission-text::after {
    content: " (1st in waiting list)";
}

.views-row:nth-child(12) .submission-text::after {
    content: " (2nd in waiting list)";
}

.views-row:nth-child(13) .submission-text::after {
    content: " (3rd in waiting list)";
}

.views-row:nth-child(14) .submission-text::after {
    content: " (4th in waiting list)";
}

.views-row:nth-child(15) .submission-text::after {
    content: " (5th in waiting list)";
}

.views-row:nth-child(16) .submission-text::after {
    content: " (6th in waiting list)";
}

.views-row:nth-child(17) .submission-text::after {
    content: " (7th in waiting list)";
}