Year	quarter	arrivals
1990	Mar	239
1990	Jun	204
1990	Sep	238
1990	Dec	253
1991	Mar	238
1991	Jun	193
1991	Sep	243
1991	Dec	262
1992	Mar	249
1992	Jun	202
1992	Sep	243
1992	Dec	274
1993	Mar	274
1993	Jun	220
1993	Sep	260
1993	Dec	295