Icon of Chart Line Down

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<svg width="800px" height="800px" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M21 21H7.8C6.11984 21 5.27976 21 4.63803 20.673C4.07354 20.3854 3.6146 19.9265 3.32698 19.362C3 18.7202 3 17.8802 3 16.2V3M7 7L12 13L16 9L21 15" stroke="#000000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
</svg>