def threshold_counts(s, threshold=0):
    """Minimum number of unique values in a pandas column

    Args:
        s (pandas series): Column to check
        threshold: Minimum number of unique values in percentage

    Returns:
        boolean: If threshold is reached or not

    """
    counts = s.value_counts(normalize=True, dropna=False)
    if (counts >= threshold).any():
        return False
    return True