~OM Oman $28800 ~PA Panama $15400 ~PE Peru $10600 ~PG Papua New Guinea $2700 ~PH Philippines $4400 ~PK Pakistan $3100 ~PL Poland $20600 ~PR Puerto Rico $16300 ~PS Palestine $2900 ~PT Portugal $23000 ~PY Paraguay $6100 ~RO Romania $12700 ~RU Russia $17500 ~RW Rwanda $1400 ~SA Saudi Arabia $30500 ~SD Sudan $2500 ~SI Slovenia $0 ~SK Slovakia $24100 ~SL Sierra Leone $1300 ~SN Senegal $2000 ~SO Somalia $600 ~SY Syria $5100 ~SZ Swaziland $5700 ~TC Turks and Caicos Islands $29100 ~TD Chad $2500 ~TG Togo $1100 ~TH Thailand $9500 ~TJ Tajikistan $2200 ~TM Turkmenistan $8600 ~TN Tunisia $9700 ~TR Turkey $14800 ~TZ Tanzania $1600 ~UA Ukraine $7300 ~UG Uganda $1400 ~US United States $51700 ~UY Uruguay $15900 ~UZ Uzbekistan $3500 ~VE Venezuela $13500 ~VN Vietnam $3800 ~YE Yemen $2300 ~YU Serbia and Montenegro $0 ~ZA South Africa $11300 ~ZM Zambia $1700