top 7 insurance company in canada

明珠

State Farm Mutual Automobile Insurance Company
5 v  X" C0 j. kMarket Share: 11.72%
0 t  y4 h9 J  Q" y# nRate Filing: +3.08%
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! P" Y6 ?8 N; j$ r% i( _Security National Insurance Company( TD)
Market Share: 5.66%
* A% x* g8 t& y" M/ URate Filing: +0.80%

8 z+ b5 m. A4 L) WDominion of Canada General Insurance Company
Market Share: 4.68%
Rate Filing: +2.55%

Co-operators General Insurance Company
Market Share: 4.66%
( E, t5 p6 y( w, URate Filing: No change
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1 s9 m5 J) Y7 }# w$ m: `( RAllstate Insurance Company of Canada
Market Share: 3.04%
: W; R; X- h7 U  k4 c+ cRate Filing: +5.00%
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  z) p8 P: R9 e5 l7 b- x6 V- {RBC General Insurance Company
# @* W/ y  R$ T3 [' f/ RMarket Share: 2.80%
: {: D5 P! ~+ K! `5 IRate Filing: +3.75%

Farm Mutual Reinsurance Plan Inc.
' U1 l) c0 g# j3 p9 M4 Q7 }Market Share: 1.73%
Rate Filing: +5.95%

Touareg

请问，Rate Filing 是什么意思？