what were the total number of athletes that represented japan according to this list?
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col : heat | rank | name | result | notes row 1 : 1 | 1 | gabriela szabo (rou) | 15:26.62 q |  row 2 : 1 | 2 | paula radcliffe (gbr) | 15:27.25 q |  row 3 : 2 | 3 | fernanda ribeiro (por) | 15:27.30 q |  row 4 : 1 | 4 | harumi hiroyama (jpn) | 15:27.75 q |  row 5 : 1 | 5 | roberta brunet (ita) | 15:29.03 q |  row 6 : 2 | 6 | liu jianying (chn) | 15:29.28 q | pb row 7 : 1 | 7 | ayelech worku (eth) | 15:29.37 q |  row 8 : 1 | 8 | li wei (chn) | 15:29.62 q |  row 9 : 1 | 9 | libbie hickman (usa) | 15:30.56 q | sb row 10 : 2 | 10 | lydia cheromei (ken) | 15:32.00 q |  row 11 : 2 | 11 | merima denboba (eth) | 15:32.01 q |  row 12 : 1 | 12 | gunhild hall (nor) | 15:32.13 q |  row 13 : 2 | 13 | naoko takahashi (jpn) | 15:32.25 q |  row 14 : 2 | 14 | yuko kawakami (jpn) | 15:32.71 q |  row 15 : 1 | 15 | kate anderson (aus) | 15:36.16 q |  row 16 : 1 | 16 | yelena kopytova (rus) | 15:37.19 | pb row 17 : 2 | 17 | sonia o'sullivan (irl) | 15:40.82 |  row 18 : 2 | 18 | stela olteanu (rou) | 15:40.86 |  row 19 : 1 | 19 | adriana fernandez (mex) | 15:41.55 |  row 20 : 2 | 20 | olivera jevtić (yug) | 15:43.76 |  row 21 : 1 | 21 | melody fairchild (usa) | 15:47.66 |  row 22 : 2 | 22 | chrystosomia iakovou (gre) | 15:51.14 |  row 23 : 1 | 23 | marina bastos (por) | 15:54.01 |  row 24 : 2 | 24 | restituta joseph (tan) | 15:55.22 | nr row 25 : 1 | 25 | valerie vaughan (irl) | 15:57.58 |  row 26 : 1 | 26 | zohra ouaziz (mar) | 15:58.84 |  row 27 : 2 | 27 | amy rudolph (usa) | 16:00.87 |  row 28 : 1 | 28 | genet gebregiorgis (eth) | 16:04.40 | sb row 29 : 1 | 29 | laurence duquenoy (fra) | 16:06.02 |  row 30 : 2 | 30 | una english (irl) | 16:07.09 |  row 31 : 2 | 31 | jelena chelnova (lat) | 16:27.63 |  row 32 : 2 | 32 | helena javornik (slo) | 16:28.38 |  row 33 : 1 | 33 | justine nahimana (bur) | 17:21.77 |  row 34 : 1 | 34 | nebiat habtemariam (eri) | 18:26.50 |  row 35 : 1 | 35 | zalia aliou (tog) | 18:34.45 | nr row 36 : 1 | 36 | martha portobanco (nca) | 19:08.44 |  row 37 : 2 | — | anne hare (nzl) | dnf |  row 38 : 2 | — | kristina da fonseca-wollheim ( | dnf |  row 39 : 1 | — | maysa matrood (irq) | dns |  row 40 : 2 | — | carol howe (can) | dns |
what were the total number of athletes that represented japan according to this list?
Heat Rank Name Result Notes
1 1 Gabriela Szabo (ROU) 15:26.62 Q
1 2 Paula Radcliffe (GBR) 15:27.25 Q
2 3 Fernanda Ribeiro (POR) 15:27.30 Q
1 4 Harumi Hiroyama (JPN) 15:27.75 Q
1 5 Roberta Brunet (ITA) 15:29.03 Q
2 6 Liu Jianying (CHN) 15:29.28 Q PB
1 7 Ayelech Worku (ETH) 15:29.37 Q
1 8 Li Wei (CHN) 15:29.62 Q
1 9 Libbie Hickman (USA) 15:30.56 q SB
2 10 Lydia Cheromei (KEN) 15:32.00 Q
2 11 Merima Denboba (ETH) 15:32.01 Q
1 12 Gunhild Hall (NOR) 15:32.13 q
2 13 Naoko Takahashi (JPN) 15:32.25 Q
2 14 Yuko Kawakami (JPN) 15:32.71 Q
1 15 Kate Anderson (AUS) 15:36.16 q
1 16 Yelena Kopytova (RUS) 15:37.19 PB
2 17 Sonia O'Sullivan (IRL) 15:40.82
2 18 Stela Olteanu (ROU) 15:40.86
1 19 Adriana Fernandez (MEX) 15:41.55
2 20 Olivera Jevtić (YUG) 15:43.76
1 21 Melody Fairchild (USA) 15:47.66
2 22 Chrystosomia Iakovou (GRE) 15:51.14
1 23 Marina Bastos (POR) 15:54.01
2 24 Restituta Joseph (TAN) 15:55.22 NR
1 25 Valerie Vaughan (IRL) 15:57.58
1 26 Zohra Ouaziz (MAR) 15:58.84
2 27 Amy Rudolph (USA) 16:00.87
1 28 Genet Gebregiorgis (ETH) 16:04.40 SB
1 29 Laurence Duquenoy (FRA) 16:06.02
2 30 Una English (IRL) 16:07.09
2 31 Jelena Chelnova (LAT) 16:27.63
2 32 Helena Javornik (SLO) 16:28.38
1 33 Justine Nahimana (BUR) 17:21.77
1 34 Nebiat Habtemariam (ERI) 18:26.50
1 35 Zalia Aliou (TOG) 18:34.45 NR
1 36 Martha Portobanco (NCA) 19:08.44
2 — Anne Hare (NZL) DNF
2 — Kristina da Fonseca-Wollheim (GER) DNF
1 — Maysa Matrood (IRQ) DNS
1 — Elana Meyer (RSA) DNS
2 — Carol Howe (CAN) DNS
2 — Annemari Sandell (FIN) DNS
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