A data frame with 169 observations on the following 4 variables.
unit
a factor with levels %125%DWT%TOF%WTO100P10121220142214243869501550756914751077387PRA8POSABSCARCCAREAARPGBCCTC004C010C01KC040C100C120C125C140C150C180C250C65XCARECCMYCG2MCHCOCHRXCM10CMGRCMMLCOMLCP20CPARCPRADC13FRAGG05IG10IG250GCHGGCMYGRG1GRGRGRPCGT05GT10GT12GT15GT18GT1MGT24GT25GT2XGT30GT38GT50GT53GT5CLT12LT13LT18LT1MLT25LT40M2GRM2MLMCM3MM2CMM2GMMDWMMMLMT10MULTNOTKORDIOTHEPCM1PCMYPHYTPP25PP51PP52PPMLPPOLPRABPROBPTC0PTC2PTC3PTCTPX25SQC0SQCUSQCYSQG1SQG5SQL5TOCATOM1TOM2TOM3TOM4TOM5TOM6TOM7TOM8TOM9TOMXTOTAUCMYV025V100V125V255V501X01KX105X106X120X125X150X15GX160X180X18CX20PX250X25PX310X37PX459X500X50UX512X515X520X53CX550X55PX55UXA1KXAREXARPXARSXC25XCM3XCOPXFMLXFRGXFRPXFRSXIMGXPEAXPEEXPIXXRIF