Actuarium

FL Farm Bureau Grp — Private Passenger Auto

Schedule P Part 3B — net private passenger auto liability/physical damage, 1988–1997 accident years. GRCODE 4839 (FL Farm Bureau Grp). Values in $000s, net earned premium and net losses.

Actual outcome known

Source: CAS Loss Reserve Database (Meyers & Shi), NAIC Schedule P. Meyers, G.G. and Shi, P. (2011). The Retrospective Testing of Stochastic Loss Reserve Models. CAS E-Forum, using data pulled from NAIC Schedule P Parts 1-4, 1988-1997.

Accident year1988198919901991199219931994199519961997
Net earned premium ($000)258,278277,280316,221359,146407,777440,132468,723499,637517,336533,638

Paid loss triangle, cumulative ($000), as-of 1997

AY \ Age12345678910
1988102,260168,086190,196199,058203,783204,531205,280205,779205,911205,921
1989113,438188,826211,976221,104225,131226,632227,314227,532227,553
1990128,209213,190241,623253,582257,674259,489259,970260,062
1991129,181218,195248,903259,789264,556266,188266,822
1992139,085242,303271,847282,231286,041288,748
1993154,914262,070291,947303,199307,179
1994172,025291,837322,487334,928
1995188,892304,583337,595
1996191,839306,832
1997196,865

Incurred loss triangle, cumulative ($000), as-of 1997

AY \ Age12345678910
1988225,414208,497207,803208,583208,035206,341206,188206,039205,881205,997
1989247,731232,846233,104232,197229,821228,243227,930227,703227,651
1990290,505269,680268,524265,149263,004261,447261,109260,842
1991303,790282,919274,778271,232269,510267,925267,632
1992343,457306,462299,060294,903292,479291,705
1993376,913330,855320,521315,124313,454
1994402,824365,186354,292350,261
1995417,102385,604376,371
1996438,743390,974
1997444,654

Realized paid-loss square, all 10 development lags ($000)

AY \ Age12345678910
1988102,260168,086190,196199,058203,783204,531205,280205,779205,911205,921
1989113,438188,826211,976221,104225,131226,632227,314227,532227,553227,567
1990128,209213,190241,623253,582257,674259,489259,970260,062260,440260,647
1991129,181218,195248,903259,789264,556266,188266,822267,036267,110267,228
1992139,085242,303271,847282,231286,041288,748289,701291,113290,978291,031
1993154,914262,070291,947303,199307,179309,058310,106310,530311,168311,353
1994172,025291,837322,487334,928340,905343,633344,415345,678345,767345,797
1995188,892304,583337,595353,235361,719364,926367,210367,680367,780367,921
1996191,839306,832343,871361,767369,513372,768373,847374,628375,497375,078
1997196,865306,138345,204361,646369,787372,702373,760374,292374,515374,519

Realized incurred-loss square, all 10 development lags ($000)

AY \ Age12345678910
1988225,414208,497207,803208,583208,035206,341206,188206,039205,881205,997
1989247,731232,846233,104232,197229,821228,243227,930227,703227,651227,589
1990290,505269,680268,524265,149263,004261,447261,109260,842260,670260,749
1991303,790282,919274,778271,232269,510267,925267,632267,421267,224267,259
1992343,457306,462299,060294,903292,479291,705291,295291,427291,277291,188
1993376,913330,855320,521315,124313,454312,365311,884311,369311,577311,675
1994402,824365,186354,292350,261347,757346,084345,574346,227346,014346,070
1995417,102385,604376,371372,472371,674369,024369,220368,908368,797368,233
1996438,743390,974380,356377,508375,924375,620375,493375,806375,892375,324
1997444,654398,635381,525378,026377,518376,654375,895375,442375,065375,038

Hindsight test: chain-ladder vs. realized outcome

A volume-weighted chain-ladder projection from the 1997 upper triangle, compared against the actual realized ultimate now that the full square is known.

Accident yearAge at 1997Projected ultimateRealized ultimateError %
198810205,921205,9210.0%
19899227,564227,567-0.0%
19908260,166260,647-0.2%
19917267,241267,2280.0%
19926289,971291,031-0.4%
19935310,575311,353-0.2%
19944344,294345,797-0.4%
19953361,649367,921-1.7%
19962368,275375,078-1.8%
19971393,129374,5195.0%
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