Description of column names in data table:
Year				- return year
BL				- brood line (odd/even)
regime 			- ocean climate regime (upto1988/since1989)
Escapement			- wild PWS pink salmon spawner escapement (millions)
Run.Size			- wild PWS pink salmon run size, i.e. total return (millions)
Spawners			- wild PWS pink salmon spawners two years prior (millions)
RS				- wild PWS pink salmon recruits/spawner
lnRS				- wild PWS pink salmon ln(recruits/spawner)
prevYearRunSize 		- wild PWS pink salmon previous year run size (millions)
prev_tot_PWS_return 	- previous year return wild plus hatchery fish (millions)
PWS_released_Total	- PWS pink salmon hatchery releases (millions)
sameYrcomp_regional 	- regional sockeye plus chum salmon abundance (millions)
sameYrcompetitors 		- NE Pacific sockeye plus chum salmon abundance (millions)
egoa.win.sst			- eastern Gulf of Alaska winter temperature anomaly 
egoa.spr.sst			- eastern Gulf of Alaska spring temperature anomaly 
wgoa.win.sst			- western Gulf of Alaska winter temperature anomaly 
wgoa.spr.sst			- western Gulf of Alaska spring temperature anomaly 
PDOann			- annual Pacific Decadal Oscillation index
NPGOann 			- annual North Pacific Gyre Oscillation index
pCO2_PWS			- pCO2 Prince William Sound
pCO2_nGoA 			- pCO2 northern Gulf of Alaska
pH_PWS			- pH Prince William Sound
pH_nGoA 			- pH northern Gulf of Alaska
mean_pCO2 			- pCO2 subpolar gyre 
mean_pH 			- pCO2 subpolar gyre 
mean_NGAO 		- NGAO index subpolar gyre