我有一个堆叠的条形图，但我想把它颠倒过来，把最小的条形放在上面。下面是我的代码：

import pandas as pd
data = {'fields': ['LastName', 'Race', 'Email', 'MidName', 'StreetAddress', 'Phone', 'State', 'FirstName', 'Gender', 'Expiration', 'StreetAddress'],
        'Status': ['complete', 'missing', 'missing', 'complete', 'complete', 'missing', 'missing', 'complete', 'complete', 'complete', 'missing'],
        'count': [27399, 146, 24225, 26078, 27269, 59, 28, 27399, 27403, 14017, 134]}
df = pd.DataFrame(data)
dfp = df.pivot(index='Status', columns='fields', values='count')
tot = dfp.sum(axis=1)
per = dfp.div(tot, axis=0).mul(100).round(2)
ax = per.plot(kind='bar', stacked=True, figsize=(8, 6), rot=0)
ax.legend(bbox_to_anchor=(1, 0.5), loc='center left', frameon=False)
ax = per.plot(kind='bar', stacked=True, figsize=(8, 6), rot=0)
for p in ax.patches:
    width, height = p.get_width(), p.get_height()
    x, y = p.get_xy() 
    ax.text(x+width/2, 
        y+height/2, 
        '{:.0f} %'.format(height), 
        horizontalalignment='center', 
        verticalalignment='center')
    ax.legend(bbox_to_anchor=(1, 0.5), loc='center left', frameon=False)

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