Why my SVG's rendering very small in IE9 browsers as compared to other browsers?

Why my SVG's rendering very small in IE9 browsers as compared to other
browsers?

Why my SVG's rendering very small in IE9 browsers as compared to other
browsers? Check it on : http://jsfiddle.net/manisha_dayal/BhL5h/
CODE:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 465 500">
<defs>
<linearGradient y2="-4.464" x2="9.31253" y1="-4.464" x1="9.06029"
id="linearGradient5389-288" xlink:href="#linearGradient5281-60-75"/>
<linearGradient id="linearGradient5281-60-75">
<stop offset="0" id="stop5283-4-81" stop-color="#00bc00"/>
</linearGradient>
<linearGradient y2="-1.96423" x2="5.56889" y1="-1.96423" x1="5.52626"
id="linearGradient5358-257" xlink:href="#linearGradient5281-6-7-44"/>
<linearGradient id="linearGradient5281-6-7-44">
<stop offset="0" id="stop5283-8-7-44" stop-color="#00bc00"/>
</linearGradient>
</defs>
<path fill="#803300" stroke="#4f0000" stroke-width="1.63124"
d="m175.179688,386.799622c0,0 2.236053,0.28125
2.236359,16.800903c0,0.249329 -0.117767,0.124695 -0.117767,0.124695c0,0
4.190033,1.643066 5.060883,-0.748169c0.521469,-1.430542
-1.075348,1.471313 0.117767,0c0,0 -1.294525,-14.932739
3.295624,-27.626404c4.590118,-12.693665 -2.82486,-1.74231
-2.82486,-1.74231l-3.88385,13.191284l-2.589325,-3.608948l-1.29483,3.608948z"
id="path5340" stroke-miterlimit="4"/>
<path fill="url(#linearGradient5389-288)" stroke="#006500"
stroke-width="1.63124" id="path3067" d="m154.31485,366.880066c0,0
27.001648,-0.080078 22.36261,18.915894c-0.197449,0.808472
-22.480286,9.084473 -22.36261,-18.915894z" stroke-miterlimit="4"/>
<path fill="#008000" stroke="#000000" stroke-width="0" id="path5410"
d="m158.293701,370.173401c0,0 1.708588,4.247437
16.853973,14.874146c4.774017,3.34967 -16.853973,-14.874146
-16.853973,-14.874146z" stroke-miterlimit="4"/>
<path fill="url(#linearGradient5358-257)" stroke="#006500"
stroke-width="1.63124" id="path3067-8" d="m214.873505,343.743317c0,0
-3.808258,43.607941 -30.013,31.236115c-0.7211,-0.340454
-14.005951,-32.605011 30.013,-31.236115z" stroke-miterlimit="4"/>
<path fill="#008000" stroke="#000000" stroke-width="0" id="path5410-9"
d="m202.954803,354.108612c0,0 -9.3685,8.154877
-17.436462,19.707367c-2.391663,3.424561 17.436462,-19.707367
17.436462,-19.707367z" stroke-miterlimit="4"/>
<path fill="#005900" stroke="#084708" stroke-width="0"
d="m167.58728,404.461884c0,0 -3.645798,-4.193726
-12.141418,-4.239349c-3.093018,-1.404694 8.388412,3.332947
7.573563,5.931885c2.193863,2.063873 20.251053,1.585205
22.153366,0.386536c13.504608,1.593384 5.851257,-1.770721
12.247177,-0.591553c4.639633,-13.084442 8.780899,-4.412567
9.502029,-6.244659c-0.358047,0.504974 -6.177658,-6.651428
-13.17511,3.11554c-1.58197,-1.817108 -0.340118,-6.438782
2.154877,-9.259857c-6.068848,2.962555 -3.955688,3.255798
-9.720398,9.497223c-0.563629,-1.858063 -3.688263,-0.623657
0.117111,-10.350433c-7.222672,1.65155 -5.35704,14.027435
-6.14537,11.844543c-0.788361,-2.181915 -6.210281,-9.869324
-13.734482,-10.934387c0.586411,1.125366 10.06958,5.845795
7.912262,11.765533c-4.269089,-2.511169 -6.177917,-9.453339
-14.240829,-10.067078c4.514236,2.352417 6.908157,4.650513
7.497223,9.146057l0,0l0,0l0,0l0,0z" id="path10811"
stroke-miterlimit="4"/>
<rect fill="none" id="canvas_background" height="409.50003"
width="343.59283" y="-1" x="-1"/>
</svg>